a. Running in a contrary direction. Hammond. [ 1913 Webster ]

n. pl. (Geom.) Straight lines or planes which make angles in some respect opposite in character to those made by parallel lines or planes. [ 1913 Webster ]

a. (Med.) Good against paralysis. -- n. A medicine for paralysis. [ 1913 Webster ]

a. Antiparalytic. [ 1913 Webster ]

n. 1. any of various plants of the genus Aralia; often aromatic plants having compound leaves and small umbellate flowers. [ WordNet 1.5 ]

n. 1. 1 a family of mostly tropical trees and shrubs and lianas: ginseng; hedera.
Syn. -- family Araliaceae, ivy family [ WordNet 1.5 ]

n. a small order of macroscopic fresh and brackish water algae with a distinct axis; the stoneworts.
Syn. -- order Charales. [ WordNet 1.5 ]

a. Receiving by the ear. [ Obs. ] Hewyt. [ 1913 Webster ]

a. Unparalleled. [ Obs. ] [ 1913 Webster ]

. (Med.) An acute viral disease, affecting almost exclusively infants and young adults, characterized by inflammation of the anterior horns of the gray substance of the spinal cord. It is attended with febrile symptoms, motor paralysis, and muscular atrophy, often producing permanent deformities. Called also acute anterior poliomyelitis, poliomyelitis and polio. It is caused by any one of three polioviruses, and by the end of the twentieth century had been almost completely eradicated in developed countries by a widespread campaign of immunization. [ Webster 1913 Suppl. +PJC ]

n. [ Native name. ] (Zool.) A wild goat (Capra Jemlaica) which inhabits the loftiest mountains of India. It has long, coarse hair, forming a thick mane on its head and neck. [ 1913 Webster ]

n. A kind of wood common in Demerara, durable in salt water, because not subject to the depredations of the sea worm and barnacle. [ 1913 Webster ]

adj. 1. not parallel; -- of lines or linear objects. Opposite of parallel. [ Narrower terms: bias, catacorner, cata-cornered, catercorner, cater-cornered, catty-corner, catty-cornered, diagonal, kitty-corner, kitty-cornered, oblique, skew, skewed, slanted ; crossed, decussate, intersectant, intersecting; cross-grained ; diagonal; orthogonal, orthographic, rectangular, right-angled ; right, perpendicular; angled ; convergent ] Also See: convergent, divergent, diverging. [ WordNet 1.5 ]

2. (Computers) Not using parallel processing; -- of computers. [ Narrower terms: serial ] PJC ]

a. [ Pref. para- + lactic. ] (Physiol. Chem.) Designating an acid called paralactic acid. See Lactic acid, under Lactic. [ 1913 Webster ]

n. [ Pref. para- + albumin. ] (Physiol. Chem.) A proteidlike body found in the fluid from ovarian cysts and elsewhere. It is generally associated with a substance related to, if not identical with, glycogen. [ 1913 Webster ]

n. [ Pref. para- + aldehyde. ] (Chem.) A trimer of acetaldehyde (C6H12O3), prepared by polymerization of acetaldehyde with hydrochloric and sulfuric acids. It has sedative and hypnotic properties. MI11 [ PJC ]

‖n. [ NL., fr. Gr. &unr_;, fr. &unr_; to leave on one side, to omit; para` beside + &unr_; to leave. ] (Rhet.) A pretended or apparent omission; a figure by which a speaker artfully pretends to pass by what he really mentions; as, for example, if an orator should say, “I do not speak of my adversary's scandalous venality and rapacity, his brutal conduct, his treachery and malice.” [ Written also paralepsis, paralepsy, paralipsis. ] [ 1913 Webster ]

‖n. [ NL. ] See Paraleipsis. [ 1913 Webster ]

‖n. [ NL.; para- + Gr. 'a`lghsis sense of pain. ] (Med.) Disordered sensibility to pain, including absence of sensibility to pain, excessive sensibility to pain, and abnormal painful results of stimuli. -- Par`al*ge"sic a. [Webster 1913 Suppl.]

n. [ Gr. pa`ralos near the sea; para` beside + "a`ls the sea.] A dweller by the sea. [R.] [1913 Webster]

‖n. pl. [ L., fr. Gr. paraleipome`nwn of things omitted, pass. p. pr. (neuter genitive plural) fr. &unr_; to omit. ] A title given in the Douay Bible to the Books of Chronicles. [ 1913 Webster ]

☞ In the Septuagint these books are called Paraleipome`nwn prw^ton and dey`teron, which is understood, after Jerome's explanation, as meaning that they are supplementary to the Books of Kings W. Smith. [ 1913 Webster ]

n. [ NL. ] See Paraleipsis. [ 1913 Webster ]

{ } a. [ Cf. F. parallactique. ] Of or pertaining to a parallax. [ 1913 Webster ]

n. [ Gr. &unr_; alternation, the mutual inclination of two lines forming an angle, fr. &unr_; to change a little, go aside, deviate; para` beside, beyond + &unr_; to change: cf. F. parallaxe. Cf. Parallel. ] 1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or points of view. [ 1913 Webster ]

2. (Astron.) The apparent difference in position of a body (as the sun, or a star) as seen from some point on the earth's surface, and as seen from some other conventional point, as the earth's center or the sun. [ 1913 Webster ]

3. (Astron.) The annual parallax. See annual parallax, below. [ PJC ]

Annual parallax, the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; it is equivalent to the parallax of an astronomical object which would be observed by taking observations of the object at two different points one astronomical unit (the distance of the Earth from the sun) apart, if the line joining the two observing points is perpendicular to the direction to the observed object; as, the annual parallax of a fixed star. The distance of an astronomical object from the Earth is inversely proportional to the annual parallax. A star which has an annual parallax of one second of an arc is considered to be one parsec (3.26 light years) distant from the earth; a star with an annual parallax of one-hundredth second of an arc is 326 light years distant. See parsec in the vocabulary, and stellar parallax, below. --
Binocular parallax, the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved. --
Diurnal parallax or
Geocentric parallax, the parallax of a body with reference to the earth's center. This is the kind of parallax that is generally understood when the term is used without qualification. --
Heliocentric parallax, the parallax of a body with reference to the sun, or the angle subtended at the body by lines drawn from it to the earth and sun; as, the heliocentric parallax of a planet. --
Horizontal parallax, the geocentric parallx of a heavenly body when in the horizon, or the angle subtended at the body by the earth's radius. --
Optical parallax, the apparent displacement in position undergone by an object when viewed by either eye singly. Brande & C. --
Parallax of the cross wires (of an optical instrument), their apparent displacement when the eye changes its position, caused by their not being exactly in the focus of the object glass. --
Stellar parallax, the annual parallax of a fixed star. [ 1913 Webster ]

n. An annual parallax of one second of an arc; -- applied to celestial objects outside the solar system. It is used to measure the distance of an astronomical object from the Earth. A star which has an annual parallax of one second of an arc is considered to be one parsec (3.26 light years) distant from the earth. See parsec in the vocabulary. [ PJC ]

a. [ F. parallèle, L. parallelus, fr. Gr. &unr_;; para` beside + &unr_; of one another, fr. &unr_; other, akin to L. alius. See Alien. ] 1. (Geom.) Extended in the same direction, and in all parts equally distant; as, parallel lines; parallel planes. [ 1913 Webster ]

Revolutions . . . parallel to the equinoctial. Hakluyt. [ 1913 Webster ]

☞ Curved lines or curved planes are said to be parallel when they are in all parts equally distant. [ 1913 Webster ]

2. Having the same direction or tendency; running side by side; being in accordance (with); tending to the same result; -- used with to and with. [ 1913 Webster ]

When honor runs parallel with the laws of God and our country, it can not be too much cherished. Addison. [ 1913 Webster ]

3. Continuing a resemblance through many particulars; applicable in all essential parts; like; similar; as, a parallel case; a parallel passage. Addison. [ 1913 Webster ]

Parallel bar. (a) (Steam Eng.) A rod in a parallel motion which is parallel with the working beam. (b) One of a pair of bars raised about five feet above the floor or ground, and parallel to each other, -- used for gymnastic exercises. --
Parallel circles of a sphere, those circles of the sphere whose planes are parallel to each other. --
Parallel columns, or
Parallels (Printing), two or more passages of reading matter printed side by side, for the purpose of emphasizing the similarity or discrepancy between them. --
Parallel forces (Mech.), forces which act in directions parallel to each other. --
Parallel motion. (a) (Mach.) A jointed system of links, rods, or bars, by which the motion of a reciprocating piece, as a piston rod, may be guided, either approximately or exactly in a straight line. Rankine. (b) (Mus.) The ascending or descending of two or more parts at fixed intervals, as thirds or sixths. --
Parallel rod (Locomotive Eng.), a metal rod that connects the crank pins of two or more driving wheels; -- called also couping rod, in distinction from the connecting rod. See Illust. of Locomotive, in App. --
Parallel ruler, an instrument for drawing parallel lines, so constructed as to have the successive positions of the ruling edge parallel to each other; also, one consisting of two movable parts, the opposite edges of which are always parallel. --
Parallel sailing (Naut.), sailing on a parallel of latitude. --
Parallel sphere (Astron. & Geog.), that position of the sphere in which the circles of daily motion are parallel to the horizon, as to an observer at either pole. --
Parallel vise, a vise having jaws so guided as to remain parallel in all positions. [ 1913 Webster ]

n. 1. A line which, throughout its whole extent, is equidistant from another line; a parallel line, a parallel plane, etc. [ 1913 Webster ]

Who made the spider parallels design,
Sure as De Moivre, without rule or line ? Pope. [ 1913 Webster ]

2. Direction conformable to that of another line, [ 1913 Webster ]

Lines that from their parallel decline. Garth. [ 1913 Webster ]

3. Conformity continued through many particulars or in all essential points; resemblance; similarity. [ 1913 Webster ]

Twixt earthly females and the moon
All parallels exactly run. Swift. [ 1913 Webster ]

4. A comparison made; elaborate tracing of similarity; as, Johnson's parallel between Dryden and Pope. [ 1913 Webster ]

5. Anything equal to, or resembling, another in all essential particulars; a counterpart. [ 1913 Webster ]

None but thyself can be thy parallel. Pope. [ 1913 Webster ]

6. (Geog.) One of the imaginary circles on the surface of the earth, parallel to the equator, marking the latitude; also, the corresponding line on a globe or map; as, the counry was divided into North and South at the 38th parallel. [ 1913 Webster +PJC ]

7. (Mil.) One of a series of long trenches constructed before a besieged fortress, by the besieging force, as a cover for troops supporting the attacking batteries. They are roughly parallel to the line of outer defenses of the fortress. [ 1913 Webster ]

8. (Print.) A character consisting of two parallel vertical lines (thus, ‖) used in the text to direct attention to a similarly marked note in the margin or at the foot of a page. [ 1913 Webster ]

9. (Elec.) That arrangement of an electrical system in which all positive poles, electrodes, terminals, etc., are joined to one conductor, and all negative poles, etc., to another conductor; -- called also multiple. Opposed to series.

☞ Parts of a system so arranged are said to be
in parallel or
in multiple. [ Webster 1913 Suppl. ]

Limiting parallels. See under Limit, v. t. --
Parallel of altitude (Astron.), one of the small circles of the sphere, parallel to the horizon; an almucantar. --
Parallel of declination (Astron.), one of the small circles of the sphere, parallel to the equator. --
Parallel of latitude. (a) (Geog.) See def. 6. above. (b) (Astron.) One of the small circles of the sphere, parallel to the ecliptic. [ 1913 Webster ]

v. t. [ imp. & p. p. Paralleled p. pr. & vb. n. Paralleling ] 1. To place or set so as to be parallel; to place so as to be parallel to, or to conform in direction with, something else. [ 1913 Webster ]

The needle . . . doth parallel and place itself upon the true meridian. Sir T. Browne. [ 1913 Webster ]

2. Fig.: To make to conform to something else in character, motive, aim, or the like. [ 1913 Webster ]

His life is paralleled
Even with the stroke and line of his great justice. Shak. [ 1913 Webster ]

3. To equal; to match; to correspond to. Shak. [ 1913 Webster ]

4. To produce or adduce as a parallel. [ R. ] Locke. [ 1913 Webster ]

My young remembrance can not parallel
A fellow to it. Shak. [ 1913 Webster ]

v. i. To be parallel; to correspond; to be like. [ Obs. ] Bacon. [ 1913 Webster ]

a. Capable of being paralleled, or equaled. [ R. ] Bp. Hall. [ 1913 Webster ]

n. (Geometry) A prism whose bases are parallelograms.
Syn. -- parallelopiped, parallelepipedon, parallelopipedon. [ WordNet 1.5 ]

n. (Geometry) Same as parallelepiped.
Syn. -- parallelepiped, parallelopiped, parallelopipedon. [ WordNet 1.5 ]

n. [ Gr. &unr_;, fr. &unr_; to place side by side, or parallel: cf. F. parallélisme. ] [ 1913 Webster ]

1. The quality or state of being parallel. [ 1913 Webster ]

2. Resemblance; correspondence; similarity. [ 1913 Webster ]

A close parallelism of thought and incident. T. Warton. [ 1913 Webster ]

3. Similarity of construction or meaning of clauses placed side by side, especially clauses expressing the same sentiment with slight modifications, as is common in Hebrew poetry; e. g.: --

At her feet he bowed, he fell:
Where he bowed, there he fell down dead. Judg. v. 27. [ 1913 Webster ]

a. Of the nature of a parallelism; involving parallelism. [ 1913 Webster ]

The antithetic or parallelistic form of Hebrew poetry is entirely lost. Milman. [ 1913 Webster ]

v. t. To render parallel. [ R. ] [ 1913 Webster ]

a. Matchless. [ R. ] [ 1913 Webster ]

adv. In a parallel manner; with parallelism. [ R. ] Dr. H. More. [ 1913 Webster ]

n. [ Gr. &unr_;; &unr_; parallel + &unr_; to write: cf. F. parallélogramme. See Parallel, and -gram. ] (Geom.) A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; -- sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles. [ 1913 Webster ]

Parallelogram of velocities,
parallelogram of forces,
parallelogram of accelerations,
parallelogram of momenta, etc. (Mech.), a parallelogram the diagonal of which represents the resultant of two velocities, forces, accelerations, momenta, etc., both in quantity and direction, when the velocities, forces, accelerations, momenta, etc., are represented in quantity and direction by the two adjacent sides of the parallelogram. [ 1913 Webster ]

a. Of or pertaining to a parallelogram; parallelogrammic. [ 1913 Webster ]

{ } a. Having the properties of a parallelogram. [ R. ] [ 1913 Webster ]

n. [ Gr. para`llhlos parallel + 'epi`pedon a plane surface, 'epi`pedos on the ground, or level with it, level, flat; 'epi` on + pe`don the ground: cf. F. parallélopipède. ] (Geom.) A solid, the faces of which are six parallelograms, the opposite pairs being parallel, and equal to each other; a prism whose base is a parallelogram.
Syn. -- parallelepiped, parallelepipedon, parallelopipedon. [ 1913 Webster ]

n. [ NL. ] A parallelopiped. Hutton. [ 1913 Webster ]

v. t. & i. To park (a vehicle) parallel to the curb; -- contrasted with angle-park; as, to get a driver's license, one needs to be able to parallel-park. [ PJC ]

n. The act or process of parking parallel to the curb; -- contrasted with angle-parking. [ PJC ]

. (Numismatics) Two or more metals coined without any attempt by the government to regulate their values. [ Webster 1913 Suppl. ]

. (Anat.) A sulcus parallel to, but some distance below, the horizontal limb of the fissure of Sylvius. [ Webster 1913 Suppl. ]

. (Elec.) A transformer connected in parallel. [ Webster 1913 Suppl. ]

. A vise with jaws so guided as to remain parallel. [ Webster 1913 Suppl. ]

a. Containing paralogism; illogical. “Paralogical doubt.” Sir T. Browne. [ 1913 Webster ]

n. [ Gr. paralogismo`s, fr. paralogi`zesqai to reason falsely; para` beside + logi`zesqai to reason, lo`gos discourse, reason: cf. F. paralogisme. ] (Logic) A reasoning which is false in point of form, that is, which is contrary to logical rules or formulæ; a formal fallacy, or pseudo-syllogism, in which the conclusion does not follow from the premises. [ 1913 Webster ]