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n. [ L. Of unknown origin. ] A mystical word or collocation of letters written as in the figure. Worn on an amulet it was supposed to ward off fever. At present the word is used chiefly in jest to denote something without meaning; jargon. [ 1913 Webster ]

n. (Antiq.) A roll or bag, filled with dust, borne by Byzantine emperors, as a memento of mortality. It is represented on medals. [ 1913 Webster ]

n.; pl. E. acacias L. acaciae [ L. from Gr. 'akaki`a; orig. the name of a thorny tree found in Egypt; prob. fr. the root ak to be sharp. See Acute. ] 1. [ capitalized ] A genus of leguminous trees and shrubs. Nearly 300 species are Australian or Polynesian, and have terete or vertically compressed leaf stalks, instead of the bipinnate leaves of the much fewer species of America, Africa, etc. Very few are found in temperate climates. [ 1913 Webster ]

2. (Med.) The inspissated juice of several species of acacia; -- called also gum acacia, and gum arabic. AS [ 1913 Webster ]

n. Gum arabic. [ 1913 Webster ]

n. [ L. academia. See Academy. ] An academy. [ Poetic ] Shak. [ 1913 Webster ]

a. Academic. [ R. ] [ 1913 Webster ]

n. A member of an academy, university, or college. [ 1913 Webster ]

n. 1. One holding the philosophy of Socrates and Plato; a Platonist. Hume. [ 1913 Webster ]

2. A member of an academy, college, or university; an academician. [ 1913 Webster ]

{ } a. [ L. academicus: cf. F. académigue. See Academy. ] 1. Belonging to the school or philosophy of Plato; as, the Academic sect or philosophy. [ 1913 Webster ]

2. Belonging to an academy or other higher institution of learning; scholarly; literary or classical, in distinction from scientific. “Academic courses.” Warburton. “Academical study.” Berkeley. [ 1913 Webster ]

adv. In an academical manner. [ 1913 Webster ]

n. pl. The articles of dress prescribed and worn at some colleges and universities. [ 1913 Webster ]

n. [ F. académicien. See Academy. ] 1. A member of an academy, or society for promoting science, art, or literature, as of the French Academy, or the Royal Academy of arts. [ 1913 Webster ]

2. A collegian. [ R. ] Chesterfield. [ 1913 Webster ]

n. 1. the position or state of being a member of an honorary academy. [ WordNet 1.5 ]

n. 1. A tenet of the Academic philosophy. [ 1913 Webster ]

2. A mannerism or mode peculiar to an academy. [ 1913 Webster ]

n. The doctrines of the Academic philosophy. [ Obs. ] Baxter. [ 1913 Webster ]

n. [ F. academiste. ] 1. An Academic philosopher. [ 1913 Webster ]

2. An academician. [ Obs. ] Ray. [ 1913 Webster ]

n.; pl. Academies [ F. académie, L. academia. Cf. Academe. ] 1. A garden or grove near Athens (so named from the hero Academus), where Plato and his followers held their philosophical conferences; hence, the school of philosophy of which Plato was head. [ 1913 Webster ]

2. An institution for the study of higher learning; a college or a university. Popularly, a school, or seminary of learning, holding a rank between a college and a common school. [ 1913 Webster ]

3. A place of training; a school. “Academies of fanaticism.” Hume. [ 1913 Webster ]

4. A society of learned men united for the advancement of the arts and sciences, and literature, or some particular art or science; as, the French Academy; the American Academy of Arts and Sciences; academies of literature and philology. [ 1913 Webster ]

5. A school or place of training in which some special art is taught; as, the military academy at West Point; a riding academy; the Academy of Music. [ 1913 Webster ]

Academy figure (Paint.), a drawing usually half life-size, in crayon or pencil, after a nude model. [ 1913 Webster ]

n. 1. the French-speaking part of the Canadian Maritime Provinces. [ WordNet 1.5 ]

a. Of or pertaining to Acadia, or Nova Scotia. “Acadian farmers.” Longfellow. -- n. A native of Acadie. [ 1913 Webster ]

Acadian epoch (Geol.), an epoch at the beginning of the American paleozoic time, and including the oldest American rocks known to be fossiliferous. See Geology. --
Acadian owl (Zool.), a small North American owl (Nyctule Acadica); the saw-whet. [ 1913 Webster ]

‖n. [ F. See Cashew. ] (Bot.) (a) The cashew tree; also, its fruit. See Cashew. (b) The mahogany tree; also, its timber. [ 1913 Webster ]

‖n. pl. [ NL., from Gr. &unr_;, a nettle. ] A group of Cœlenterata, including the Medusæ or jellyfishes, and hydroids; -- so called from the stinging power they possess. Sometimes called sea nettles. [ 1913 Webster ]

{ n.; pl. Acalephs Acalephans [ See Acalephæ. ] (Zool.) One of the Acalephæ. [ 1913 Webster ]

a. [ Acaleph + -oid. ] (Zool.) Belonging to or resembling the Acalephæ or jellyfishes. [ 1913 Webster ]

a. [ Gr. 'a priv. + &unr_; calyx. ] (Bot.) Without a calyx, or outer floral envelope. [ 1913 Webster ]

n. Same as Acanthus. [ 1913 Webster ]

‖n. [ Gr. &unr_; thorn, fr. &unr_; point. See Acute. ] 1. (Bot.) A prickle. [ 1913 Webster ]

2. (Zool.) A spine or prickly fin. [ 1913 Webster ]

3. (Anat.) The vertebral column; the spinous process of a vertebra. Dunglison. [ 1913 Webster ]

a. 1. Armed with prickles, as a plant. [ 1913 Webster ]

2. (Bot.) Of, pertaining to, or resembling, the family of plants of which the acanthus is the type. [ 1913 Webster ]

a. [ L. acanthinus, Gr. &unr_;, thorny, fr. &unr_;. See Acanthus. ] Of, pertaining to, or resembling, the plant acanthus. [ 1913 Webster ]

a. [ Gr. &unr_; thorn + &unr_; fruit. ] (Bot.) Having the fruit covered with spines. [ 1913 Webster ]

‖n. pl. [ NL., from Gr. &unr_; a spine, thorn + &unr_; head. ] (Zool.) A group of intestinal worms, having the proboscis armed with recurved spines. [ 1913 Webster ]

a. (Zool.) Having a spiny head, as one of the Acanthocephala. [ 1913 Webster ]

n. 1. a genus of Australian elapid snakes.
Syn. -- genus Acanthophis. [ WordNet 1.5 ]

a. [ Gr. &unr_;, fr. &unr_; spine + fe`rein to bear. ] Spine-bearing. Gray. [ 1913 Webster ]

a. [ Gr. &unr_; thorn + &unr_;, &unr_;, foot. ] (Bot.) Having spinous petioles. [ 1913 Webster ]

‖n. pl. [ NL., from Gr. &unr_; thorn + &unr_; wing, fin. ] (Zool.) A group of teleostean fishes having spiny fins. See Acanthopterygii. [ 1913 Webster ]

a. [ Gr. &unr_; spine + &unr_; wing. ] 1. (Zool.) Spiny-winged. [ 1913 Webster ]

2. (Zool.) Acanthopterygious. [ 1913 Webster ]

a. (Zool.) Belonging to the order of fishes having spinose fins, as the perch. -- n. A spiny-finned fish. [ 1913 Webster ]

‖n. pl. [ NL., from Gr. &unr_; thorn + &unr_; fin, dim. fr. &unr_; wing. ] (Zool.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch. [ 1913 Webster ]

a. (Zool.) Having fins in which the rays are hard and spinelike; spiny-finned. [ 1913 Webster ]

adj. 1. 1 shaped like a spine or thorn
Syn. -- spinous [ WordNet 1.5 ]

n. 1. 1 a family of fishes consisting of the surgeonfishes. fish family
Syn. -- family Acanthuridae [ WordNet 1.5 ]

n. 1. type genus of the family Acanthuridae; doctorfishes.
Syn. -- genus Acanthurus [ WordNet 1.5 ]

n.; pl. E. Acanthuses /plu>, L. Acanthi [ L., from Gr. &unr_;. Cf. Acantha. ] [ 1913 Webster ]

1. (Bot.) A genus of herbaceous prickly plants, found in the south of Europe, Asia Minor, and India; bear's-breech. [ 1913 Webster ]

2. (Arch.) An ornament resembling the foliage or leaves of the acanthus (Acanthus spinosus); -- used in the capitals of the Corinthian and Composite orders. [ 1913 Webster ]

a. [ Pref. a- not + capsular. ] (Bot.) Having no capsule. [ 1913 Webster ]

a. [ Gr. &unr_;; 'a priv. + &unr_; heart. ] Without a heart; as, an acardiac fetus. [ 1913 Webster ]

n. 1. very small free-living arachnid that is parasitic on animals or plants; related to ticks. [ WordNet 1.5 ]

n. 1. the family of arachnids of the order Acarina consisting of mites.
Syn. -- family Acaridae. [ WordNet 1.5 ]

n. [ See Acarus. ] (Zool.) One of a group of arachnids, including the mites and ticks. [ 1913 Webster ]