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{ } n. [ L. aeolipilae; Aeolus god of the winds + pila a ball, or Gr. &unr_; gate (i. e., doorway of Æolus); cf. F. éolipyle. ] An apparatus consisting chiefly of a closed vessel (as a globe or cylinder) with one or more projecting bent tubes, through which steam is made to pass from the vessel, causing it to revolve. [ Written also eolipile. ] [ 1913 Webster ]

☞ Such an apparatus was first described by Hero of Alexandria about 200 years b. c. It has often been called the first steam engine. [ 1913 Webster ]

n. (Physics) Difference of quality or property in different directions. [ 1913 Webster ]

n. 1. 1 African antelopes: impalas.
Syn. -- genus Aepyceros [ WordNet 1.5 ]

n. 1. 1 coextensive with the order Aepyorniformes.
Syn. -- family Aepyornidae [ WordNet 1.5 ]

n. 1. 1 huge extinct flightless birds: elephant birds.
Syn. -- order Aepyorniformes [ WordNet 1.5 ]

‖ n. [ Gr. &unr_; high + &unr_; bird. ] A gigantic (to 9 ft.) extinct flightless bird, of which fossils were found in Madagascar.
Syn. -- elephant bird [ 1913 Webster + WordNet 1.5 ]

n. [ Aëro- + Gr. &unr_; a looking out; &unr_; to spy out. ] The observation of the state and variations of the atmosphere. [ 1913 Webster ]

a. [ Gr. 'ale`xein to keep off + pyreto`s burning heat, fever, py^r fire. ] (Med.) Serving to drive off fever; antipyretic; antifebrile. [ archaic ] -- n. An antipyretic drug; a febrifuge. [ archaic ] [ 1913 Webster + AS ]

{ } n. [ Gr. &unr_; other + direction, way, &unr_; to turn: cf. F. allotropie. ] (Chem.) The property of existing in two or more conditions which are distinct in their physical or chemical relations. [ 1913 Webster ]

☞ Thus, carbon occurs crystallized in octahedrons and other related forms, in a state of extreme hardness, in the diamond; it occurs in hexagonal forms, and of little hardness, in black lead; and again occurs in a third form, with entire softness, in lampblack and charcoal. In some cases, one of these is peculiarly an active state, and the other a passive one. Thus, ozone is an active state of oxygen, and is distinct from ordinary oxygen, which is the element in its passive state. [ 1913 Webster ]

{ ‖ } n. [ Gr. 'amblywpi`a; 'ambly`s blunt, dim + 'w`ps eye: cf. F. amblyopie. ] (Med.) Weakness of sight, without any detectable organic lesion. [ 1913 Webster + AS ]

n. 1. 1 a white crystalline substance used as an analgesic and antipyretic.
Syn. -- amidopyrine [ WordNet 1.5 ]

‖n. [ Gr. &unr_;. ] (Greek Antiq.) A woman's headband (sometimes of metal), for binding the front hair. [ 1913 Webster ]

n. [ Gr. 'a`nqrwpos man + -scopy. ] The art of discovering or judging of a man's character, passions. and inclinations from a study of his visible features. [ R. ] [ 1913 Webster ]

a. [ Pref. anti- + Gr. &unr_;, &unr_;, pus. ] (Med.) Checking or preventing suppuration. -- n. An antipyic medicine. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'anti` against + &unr_; to be feverish, fr. &unr_; fire. ] (Med.) The condition or state of being free from fever. [ 1913 Webster ]

a. (Med.) Efficacious in preventing or allaying fever. -- n. A febrifuge. [ 1913 Webster ]

n. (Med.) An artificial alkaloid, believed to be efficient in abating fever. [ 1913 Webster ]

a. (Med.) Good against burns or pyrosis. -- n. Anything of use in preventing or healing burns or pyrosis. [ 1913 Webster ]

n. [ Gr. &unr_;. ] Opposition or resistance of matter to force. [ R. ] Sir W. Hamilton. [ 1913 Webster ]

n. [ Gr. &unr_;; &unr_; from + &unr_; man. ] An aversion to the company of men; a love of solitude. [ 1913 Webster ]

n. [ Gr. &unr_; not loving man; 'a priv. + &unr_; to love + &unr_; man. ] Want of love to mankind; -- the opposite of philanthropy. Coxe. [ 1913 Webster ]

a. [ Pref. a&unr_; not + pyretic. ] (Med.) Without fever; -- applied to days when there is an intermission of fever. Dunglison. [ 1913 Webster ]

a. (Med.) Relating to apyrexy. “Apyrexial period.” Brande & C. [ 1913 Webster ]

{ ‖ } n. [ NL. apyrexia, fr. Gr. &unr_;; 'a priv. + &unr_; to be feverish, fr. &unr_; fire: cf. F. apyrexie. ] (Med.) The absence or intermission of fever. [ 1913 Webster ]

a. [ Gr. &unr_;; 'a priv. + &unr_; fire. ] Incombustible; capable of sustaining a strong heat without alteration of form or properties. [ 1913 Webster ]

n. [ Arsenic + pyrite. ] (Min.) A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel. [ 1913 Webster ]

n. Observation of the stars. [ Obs. ] [ 1913 Webster ]

n. Examination of the ear by the aid of the auriscope. [ 1913 Webster ]

n. The art or process of making autotypes. [ 1913 Webster ]

n. [ Bacterium + -scopy; fr. Gr. bakth`rion, ba`ktron, a staff + skopei^n to view. ] (Biol.) 1. The application of a knowledge of bacteria for their detection and identification, as in the examination of polluted water. [ 1913 Webster ]

2. Microscopic examination or investigation of bacteria. -- Bac*te`ri*o*scop"ic a. -- *scop"ic*al*ly adv. -- Bac*te`ri*os"co*pist n. [Webster 1913 Suppl.]

n. [ L. balneum bath + Gr. qerapey`ein to heal. ] The treatment of disease by baths. [ 1913 Webster ]

a. [ Pref. bi- + pyramidal. ] Consisting of two pyramids placed base to base; having a pyramid at each of the extremities of a prism, as in quartz crystals. [ 1913 Webster ]

n. [ Origin unknown; cf. Bumble, n. ] 1. The old game of nineholes. [ Webster 1913 Suppl. ]

2. (Card Playing) Whist played in an unscientific way. [ Webster 1913 Suppl. ]

n. a genus of epiphytic ferns of tropical America.
Syn. -- genus Campyloneurum. [ WordNet 1.5 ]

n. an alternative genus classification for the cactus wrens.
Syn. -- genus Campylorhynchus, Heleodytes, genus Heleodytes. [ WordNet 1.5 ]

a. [ Gr. &unr_; curved + &unr_; seed. ] (Bot.) Having seeds grooved lengthwise on the inner face, as in sweet cicely. [ 1913 Webster ]

a. [ Gr. &unr_; curved + &unr_; a turning. ] (Bot.) Having the ovules and seeds so curved, or bent down upon themselves, that the ends of the embryo are brought close together. [ 1913 Webster ]

v. t. [ imp. & p. p. Canopes p. pr. & vb. n. Canopying. ] To cover with, or as with, a canopy. “A bank with ivy canopied.” Milton. [ 1913 Webster ]

n.; pl. Canopies [ OE. canapie, F. canapé sofa, OF. conopée, conopeu, conopieu, canopy, vail, pavilion (cf. It. canopè canopy, sofa), LL. conopeum a bed with mosquito curtains, fr. Gr. kwnwpei^on, fr. kw`nwps gnat, kw`nos cone + 'w`ps face. See Cone, and Optic. ] 1. A covering fixed over a bed, dais, or the like, or carried on poles over an exalted personage or a sacred object, etc. chiefly as a mark of honor. “Golden canopies and beds of state.” Dryden. [ 1913 Webster ]

2. (Arch.) (a) An ornamental projection, over a door, window, niche, etc. (b) Also, a rooflike covering, supported on pillars over an altar, a statue, a fountain, etc. [ 1913 Webster ]

n. [ Sp. capibara, fr. the native name. ] (Zool.) A large South American rodent (Hydrochærus capybara) Living on the margins of lakes and rivers. It is the largest extant rodent, being about three feet long, and half that in height. It somewhat resembles the Guinea pig, to which it is related; -- called also cabiai and water hog. [ 1913 Webster ]

n. [ Cerebrum + -scopy. ] (Med.) Examination of the brain for the diagnosis of disease; esp., the act or process of diagnosticating the condition of the brain by examination of the interior of the eye (as with an ophthalmoscope). Buck. [ 1913 Webster ]

n. [ Gr. chalko`s brass + E. pyrite. So named from its color. ] (Min.) Copper pyrites, or yellow copper ore; a common ore of copper, containing copper, iron, and sulphur. It occurs massive and in tetragonal crystals of a bright brass yellow color. [ 1913 Webster ]

Full of chaps; cleft; gaping; open. [ 1913 Webster ]

n. the use of chemical agents to treat or control disease (or mental illness); -- also used especially in reference to the use of chemicals to treat cancer. [ WordNet 1.5 +PJC ]

a. Abounding in, or resembling, chips; dry and tasteless. [ 1913 Webster ]

n. (Zool.) A small American sparrow (Spizella socialis), very common near dwelling; -- also called chipping bird and chipping sparrow, from its simple note. [ 1913 Webster ]

a. Cheerful; joyous; chatty. [ 1913 Webster ]

a. [ Cf. Chappy. ] 1. Full of cracks. “Choppy finger.” Shak. [ 1913 Webster ]

2. [ Cf. Chop a change. ] Rough, with short, tumultuous waves; as, a choppy sea. [ 1913 Webster ]