‖n. [ Gr. 'a`kros topmost + poy`s, podo`s, foot. ] (Zool.) The entire upper surface of the foot. [ 1913 Webster ]

‖n.; pl. Æcidia [ NL., dim. of Gr. &unr_; injury. ] (Bot.) A form of fruit in the cycle of development of the Rusts or Brands, an order of fungi, formerly considered independent plants. [ 1913 Webster ]

n. [ LL. allodium, alodium, alodis, alaudis, of Ger. origin; cf. OHG. al all, and &unr_;t (AS. eād) possession, property. It means, therefore, entirely one's property. ] (Law) Freehold estate; land which is the absolute property of the owner; real estate held in absolute independence, without being subject to any rent, service, or acknowledgment to a superior. It is thus opposed to feud. Blackstone. Bouvier. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; similar to + &unr_; heart; -- the fruit of this plant being thought to resemble the heart of a bird. ] (Bot.) A genus of plants including the cashew tree. See Cashew. [ 1913 Webster ]

‖n. [ LL., fr. L. ante + pendere to hang. ] (Eccl.) The hangings or screen in front of the altar; an altar cloth; the frontal. Smollett. [ 1913 Webster ]

‖n.; pl. Antheridia [ Anther + &unr_; (a Gr. diminutive ending). ] (Bot.) The male reproductive apparatus in the lower plants, consisting of a cell or other cavity in which spermatozoids are produced; -- called also spermary. -- An`ther*id"i*al a. [1913 Webster]

‖n. [ NL., from Gr. &unr_; like flowers, flowery; 'a`nqos flower + e'i^dos form. ] (Bot.) The inflorescence of a compound flower in which many florets are gathered into a involucrate head. [ 1913 Webster ]

‖n. [ NL. See Arachnida. ] (Zool.) The glandular organ in which the material for the web of spiders is secreted. [ 1913 Webster ]

n. 1. 1 the type genus of the Armadillidiidae.
Syn. -- genus Armadillidium. [ WordNet 1.5 ]

‖n.; pl. Ascidia [ NL., fr. ascus. See Ascus. ] 1. (Bot.) A pitcher-shaped, or flask-shaped, organ or appendage of a plant, as the leaves of the pitcher plant, or the little bladderlike traps of the bladderwort (Utricularia). [ 1913 Webster ]

2. pl. (Zool.) A genus of simple ascidians, which formerly included most of the known species. It is sometimes used as a name for the Ascidioidea, or for all the Tunicata. [ 1913 Webster ]

‖n. [ NL., dim. of Gr. ba`sis base. ] (Bot.) A special oblong or pyriform cell, with slender branches, which bears the spores in that division of fungi called Basidiomycetes, of which the common mushroom is an example. [ 1913 Webster ]

‖n. [ NL. ] A genus of aroideous plants, of which some species are cultivated for their immense leaves (which are often curiously blotched with white and red), and others (in Polynesia) for food. [ 1913 Webster ]

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

n. a genus of plants comprising the goosefoots and including the pigweed.
Syn. -- genus Chenopodium. [ WordNet 1.5 ]

n. clostridia 1. spindle-shaped bacterial cell esp. one swollen at the center by an endospore.
Syn. -- clostridia. [ WordNet 1.5 ]

2. [ capitalized ] a genus of anaerobic, spore-forming motile bacteria of the family Bacillaceae, including several pathogenic species, such as the causative agents of gas gangrene (Clostridium perfringens), botulism (Clostridium botulinum), and tetanus (Clostridium tetani). [ PJC ]

n.; pl. coccidia (Microbiol.) any sporozoan of the order Coccidia, parasitic on the digestive epithelium of vertebrates and higher invertebrates. It is the causative agent of coccidiosis, which can be a problem in poultry rearing. [ WordNet 1.5 +PJC ]

n. See Collodion. [ 1913 Webster ]

n.; pl. E. Compendiums L. Compendia [ L. compendium that which is weighed, saved, or shortened, a short way, fr. compendere to weigh; com- + pendere to weigh. See Pension, and cf. Compend. ] A brief compilation or composition, containing the principal heads, or general principles, of a larger work or system; an abridgment; an epitome; a compend; a condensed summary. [ 1913 Webster ]

A short system or compendium of a science. I. Watts.

Syn. -- See Abridgment. [ 1913 Webster ]

‖n.; pl. Conida [ NL. ] (Bot.) A peculiar kind of reproductive cell found in certain fungi, and often containing zoospores. [ 1913 Webster ]

n. [ NL., from Gr. &unr_;&unr_;&unr_;&unr_;&unr_; dog-rose; &unr_;&unr_;&unr_;&unr_;, &unr_;&unr_;&unr_;, dog + &unr_;&unr_;&unr_; rose. ] (Bot.) A fruit like that of the rose, consisting of a cup formed of the calyx tube and receptacle, and containing achenes. [ 1913 Webster ]

‖n. [ NL., fr. Cypris Venus + pes, pedis, foot. ] (Bot.) A genus of orchidaceous plants including the lady's slipper. [ 1913 Webster ]

n. a genus of Australasian evergreen trees or shrubs.
Syn. -- genus Dacrydium. [ WordNet 1.5 ]

‖n. [ NL., fr. Gr. de`lta, the letter Δ. ] (Zool.) The triangular space under the beak of many brachiopod shells. [ 1913 Webster ]

‖n. [ L., from Gr. &unr_; &unr_; from poppy heads; dia` through, from + &unr_; head, a poppy head. ] A sirup made of poppies. [ 1913 Webster ]

n. [ Di- + ureide. ] (Chem.) One of a series of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide. [ 1913 Webster ]

‖n. [ NL. See Diuretic. ] (Med.) Free excretion of urine. [ 1913 Webster ]

a. [ L. diureticus, Gr. &unr_;, fr. &unr_; to make water; &unr_; through + &unr_; to make water, fr. &unr_; urine: cf. F. diurétique. ] (Med.) Tending to increase the secretion and discharge of urine. -- n. A medicine with diuretic properties. [ 1913 Webster ]

Diuretic salt (Med.), potassium acetate; -- so called because of its diuretic properties. [ 1913 Webster ]

a. Diuretic. [ Obs. ] Boyle. [ 1913 Webster ]

n. The quality of being diuretical; diuretic property. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. diurnus belonging to the day. ] (Zool.) A division of Lepidoptera, including the butterflies; -- so called because they fly only in the daytime. [ 1913 Webster ]

a. [ L. diurnalis, fr. dies day. See Deity, and cf. Journal. ] 1. Relating to the daytime; belonging to the period of daylight, distinguished from the night; -- opposed to nocturnal; as, diurnal heat; diurnal hours. [ 1913 Webster ]

2. Daily; recurring every day; performed in a day; going through its changes in a day; constituting the measure of a day; as, a diurnal fever; a diurnal task; diurnal aberration, or diurnal parallax; the diurnal revolution of the earth. [ 1913 Webster ]

Ere twice the horses of the sun shall bring
Their fiery torcher his diurnal ring. Shak. [ 1913 Webster ]

3. (Bot.) Opening during the day, and closing at night; -- said of flowers or leaves. [ 1913 Webster ]

4. (Zool.) Active by day; -- applied especially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects. [ 1913 Webster ]

Diurnal aberration (Anat.), the aberration of light arising from the effect of the earth's rotation upon the apparent direction of motion of light. --
Diurnal arc, the arc described by the sun during the daytime or while above the horizon; hence, the arc described by the moon or a star from rising to setting. --
Diurnal circle, the apparent circle described by a celestial body in consequence of the earth's rotation. --
Diurnal motion of the earth, the motion of the earth upon its axis which is described in twenty-four hours. --
Diurnal motion of a heavenly body, that apparent motion of the heavenly body which is due to the earth's diurnal motion. --
Diurnal parallax. See under Parallax. --
Diurnal revolution of a planet, the motion of the planet upon its own axis which constitutes one complete revolution.

Syn. -- See Daily. [ 1913 Webster ]

n. [ Cf. F. diurnal a prayerbook. See Diurnal, a. ] 1. A daybook; a journal. [ Obs. ] Tatler. [ 1913 Webster ]

2. (R. C. Ch.) A small volume containing the daily service for the “little hours, ” viz., prime, tierce, sext, nones, vespers, and compline. [ 1913 Webster ]

3. (Zool.) A diurnal bird or insect. [ 1913 Webster ]

n. A journalist. [ Obs. ] Bp. Hall. [ 1913 Webster ]

adv. Daily; every day. [ 1913 Webster ]

n. The quality of being diurnal. [ 1913 Webster ]

n. 1. Continuance during the day. [ Obs. ] [ 1913 Webster ]

2. (Zool.) The condition of sleeping or becoming dormant by day, as is the case of the bats. [ 1913 Webster ]

a. [ L. diuturnus, fr. diu a long time, by day; akin to dies day. ] Of long continuance; lasting. [ R. ] Milton. [ 1913 Webster ]

n. [ L. diuturnitas. ] Long duration; lastingness. [ R. ] Sir T. Browne. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'e`ndon within + kardi`a heart. ] (Anat.) The membrane lining the cavities of the heart. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'epi` upon + kardi`a heart. ] (Anat.) That part of the pericardium which forms the outer surface of the heart; the cardiac pericardium. [ 1913 Webster ]

‖n. [ L. ] An epicede. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'epi` upon + &unr_; a little key. ] (Anat.) A projection, formed by a separate ossification, at the scapular end of the clavicle of many birds. [ 1913 Webster ]

‖n.; pl. Epipodia [ NL., fr. Gr. 'epi` upon + &unr_;, &unr_;, foot. ] (Zoöl.) One of the lateral lobes of the foot in certain gastropods. [ 1913 Webster ]

a. [ Equi- + diurnal. ] Pertaining to the time of equal day and night; -- applied to the equinoctial line. Whewell. [ 1913 Webster ]

‖n. [ L. ] See Exode. [ 1913 Webster ]

n.; pl. E. Exordiums L. Exordia [ L. fr. exordiri to begin a web, lay a warp, begin; ex out + ordiri to begin a web, begin; akin to E. order. See Order. ] A beginning; an introduction; especially, the introductory part of a discourse or written composition, which prepares the audience for the main subject; the opening part of an oration. “The exordium of repentance.” Jer. Taylor. “Long prefaces and exordiums. ” Addison. [ 1913 Webster ]

‖n.; pl. Gladii [ L., a sword. ] (Zool.) The internal shell, or pen, of cephalopods like the squids. [ 1913 Webster ]

‖n.; pl. Glochidia [ NL., fr. Gr. &unr_; the point of an arrow. ] (Zool.) The larva or young of the mussel, formerly thought to be a parasite upon the parent's gills. [ 1913 Webster ]

‖n.; pl. Gnathidia [ NL., fr. Gr. gna`qos the jaw. ] (Zool.) The ramus of the lower jaw of a bird as far as it is naked; -- commonly used in the plural. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_;, dim. of &unr_; angle. ] (Zool.) A special groove or furrow at one or both angles of the mouth of many Anthozoa. [ 1913 Webster ]