[ See Exodus vii. 9 and Numbers xvii. 8 ] 1. (Arch.) A rod with one serpent twined around it, thus differing from the caduceus of Mercury, which has two. [ 1913 Webster ]

2. (Bot.) A plant with a tall flowering stem; esp. the great mullein, or hag-taper, and the golden-rod. [ 1913 Webster ]

‖n. [ NL., from Gr. &unr_; topmost + &unr_; finger. ] (Zool.) The upper surface of the toes, individually. [ 1913 Webster ]

n. [ Gr. 'a`kros summit + 'odoy`s, 'odo`ntos, a tooth. ] (Zool.) One of a group of lizards having the teeth immovably united to the top of the alveolar ridge. -- a. Of or pertaining to the acrodonts. [ 1913 Webster ]

n. 1. the resistance caused by a gas to the motion of a solid body moving through it. Studied in aerodynamics. [ PJC ]

n. [ Aëro- + dynamics: cf. F. aérodynamique. ] The science which treats of the air and other gaseous bodies under the action of force, and of their mechanical effects. [ 1913 Webster ]

n. [ Aëro- + Gr. &unr_; . ] (Aëronautics) a heavier-than-air aircraft; same as aeroplane. Contrasted with aerostat. [ PJC ]

a. [ Aëro- + hydrodynamic. ] Acting by the force of air and water; as, an aërohydrodynamic wheel. [ 1913 Webster ]

n. [ Aëro- + Gr. &unr_; shaken, &unr_; to shake. ] (Aëronautics) The science of gliding and soaring flight. [ Webster 1913 Suppl. ]

n. [ Aëro- + Gr. &unr_; a running. ] (Aëronautics) (a) A shed for housing an airship or aëroplane. (b) A ground or field, esp. one equipped with housing and other facilities, used for flying purposes. -- A`ër*o*drom"ic a. [Webster 1913 Suppl.]

a. 1. Pertaining to the force of air in motion. [ 1913 Webster ]

2. having a shape designed to minimize wind resistance (aerodynamic drag) when moving through the air or other gas; -- used especially of vehicles; as, the aerodynamic styling of an automobile. [ PJC ]

n. a genus of snakes comprising the copperheads.
Syn. -- genus Agkistrodon, Ancistrodon, genus Ancistrodon. [ WordNet 1.5 ]

a. [ Pref. amphi- + arthrodial. ] Characterized by amphiarthrosis. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'an priv. + 'afrodi`sia sexual pleasure, 'Afrodi`th the goddess of love. ] (Med.) Absence of sexual appetite. AS [ 1913 Webster ]

a. & n. [ Gr. 'an priv. + 'afrodisiako`s pertaining to venery. ] (Med.) Same as Antaphrodisiac. Dunglison. AS [ 1913 Webster ]

‖ a. [ Pref. anti- + aphrodisiac. ] (Med.) Capable of blunting the sexual appetite. -- n. Anything that reduces the sexual appetite. [ 1913 Webster + AS ]

a. [ Gr. 'anafro`dito`s without love. ] (Biol.) Produced without concourse of sexes. [ 1913 Webster ]

{ , a. [ Gr. 'anh`r, 'andro`s, man + E. diœcious. ] (Bot.) Having perfect and staminate flowers on different plants. -- An`dro*di*œ"cism, -di*e"cism n. [ Webster 1913 Suppl. ]

n. [ Gr. &unr_; up + E. electrode. ] (Elec.) The positive pole of a voltaic battery. [ 1913 Webster ]

n. An antaphroditic medicine. [ 1913 Webster ]

a. [ Pref. anti- + Gr. 'Afrodi`th Aphrodite: cf. F. antaphroditique. ] (Med.) 1. Antaphrodisiac. AS [ 1913 Webster ]

2. Antisyphilitic. [ R. ] AS [ 1913 Webster ]

a. & n. Same as Antaphrodisiac. [ 1913 Webster ]

n. That which (as a drug, or some kinds of food) stimulate sexual desire. [ 1913 Webster +PJC ]

{ } a. [ Gr. &unr_; pertaining to sensual love, fr. &unr_;. See Aphrodite. ] Exciting venereal desire; stimulating the desire for sexual gratification. [ 1913 Webster +PJC ]

a. [ Gr. &unr_;. ] Pertaining to Aphrodite or Venus. “Aphrodisian dames” [ that is, courtesans ]. C. Reade. [ 1913 Webster ]

‖n. [ Gr. &unr_;. ] 1. (Classic Myth.) The Greek goddess of love, corresponding to the Venus of the Romans. [ 1913 Webster ]

2. (Zool.) A large marine annelid, covered with long, lustrous, golden, hairlike setæ; the sea mouse. [ 1913 Webster ]

3. (Zool.) A beautiful butterfly (Argunnis Aphrodite) of the United States. [ 1913 Webster ]

a. Venereal. [ R. ] Dunglison. [ 1913 Webster ]

n. (Welsh mythology) a goddess famous for her beauty; the mother of Dylan.
Syn. -- Arianrhod. [ WordNet 1.5 ]

n. [ Gr. 'a`rqron joint + 'derm. ] (Zool.) The external covering of an Arthropod. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; joint + &unr_; a binding together. ] (Surg.) Surgical fixation of joints. [ Webster 1913 Suppl. ]

‖n. [ NL., fr. Gr. &unr_;, fr. &unr_; well articulated; 'a`rqron a joint + &unr_; shape. ] (Anat.) A form of diarthrodial articulation in which the articular surfaces are nearly flat, so that they form only an imperfect ball and socket. [ 1913 Webster ]

{ } a. Of or pertaining to arthrodia. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'a`rqron joint + 'ody`nh pain. ] (Med.) An affection characterized by pain in or about a joint, not dependent upon structural disease. [ 1913 Webster ]

a. Pertaining to arthrodynia, or pain in the joints; rheumatic. [ 1913 Webster ]

n. 1. (Babylonian) the chief Babylonian god; his consort was Sarpanitu.
Syn. -- Marduk, Merodach, Baal Merodach. [ WordNet 1.5 ]

imp. & p. p. of Bestride. [ 1913 Webster ]

(a) the usher to the Chapter of the Garter, so called from the black rod which he carries. He is of the king's chamber, and also usher to the House of Lords. [ Eng. ] (b) An usher in the legislature of British colonies. Cowell. [ 1913 Webster ]

Committed to the custody of the Black Rod. Macaulay. [ 1913 Webster ]

n. [ F. brodequin, OE. brossequin, fr. OD. broseken, brosekin, dim. of broos buskin, prob. fr. LL. byrsa leather, Gr. by`rsa skin, hide. Cf. Buskin. ] A buskin or half-boot. [ Written also brodequin. ] [ Obs. ] [ 1913 Webster ]

n. A secondary or additional product; something produced, as in the course of a manufacture, in addition to the principal product. [ 1913 Webster ]

prop. n. A genus of sharks including man-eating sharks, such as the great white shark, Carcharodon carcharias.
Syn. -- genus Carcharodon. [ WordNet 1.5 ]

n. a genus of white egrets.
Syn. -- genus Casmerodius. [ WordNet 1.5 ]

n. [ Pref. cata + elecrode. ] (Physics) The negative electrode or pole of a voltaic battery. Faraday. [ 1913 Webster ]

n. (Kinematics) In two figures having relative motion, one of the two curves which are the loci of the instantaneous center. [ 1913 Webster ]

n. [ From chlorine, in imitation of anodyne. ] (Med.) A patent anodyne medicine, containing opium, chloroform, Indian hemp, etc. [ 1913 Webster ]

n. [ Gr. cho`ndros a grain (of wheat or spelt), cartilage. ] (Min.) A fluosilicate of magnesia and iron, yellow to red in color, often occurring in granular form in a crystalline limestone. [ 1913 Webster ]

n. [ LL. corrodium, corredium, conredium, furniture, provision: cf. OF. conroi. See Curry. ] (Old Law) An allowance of meat, drink, or clothing due from an abbey or other religious house for the sustenance of such of the king's servants as he may designate to receive it. [ Written also corrody. ] [ 1913 Webster ]

pos>v. t. [ imp. & p. p. Corroded; p. pr. & vb. n. Corroding. ] [ L. corrodere, -rosum; cor + rodere to gnaw: cf. F. corroder. See Rodent. ] [ 1913 Webster ]

1. To eat away by degrees; to wear away or diminish by gradually separating or destroying small particles of, as by action of a strong acid or a caustic alkali. [ 1913 Webster ]

Aqua fortis corroding copper . . . is wont to reduce it to a green-blue solution. Boyle. [ 1913 Webster ]

2. To consume; to wear away; to prey upon; to impair. [ 1913 Webster ]

v. i. To have corrosive action; to be subject to corrosion. [ 1913 Webster ]

Corroding lead, lead sufficiently pure to be used in making white lead by a process of corroding.

Syn. -- To canker; gnaw; rust; waste; wear away. [ 1913 Webster ]

a. [ L. corrodens, p. pr. of corrodere. ] Corrosive. [ R. ] Bp. King. [ 1913 Webster ]

n. Anything that corrodes. Bp. King. [ 1913 Webster ]

v. t. [ See Corrode. ] To eat away by degrees; to corrode. [ Obs. ] Sandys. [ 1913 Webster ]