AMY 



ANA 



of the horizon, and the point of the same 

 circle on which the centre of the sun or 

 star appears in rising or setting, on any 

 particular day, is called the amplitude of 

 the sun or star for that day, and so is 

 either eastern or western, or teflinically, 

 ortive at rising, and occiduotts or occasire at 

 setting. The distances of the points of 

 rising or setting from east and west, as 

 shown by the compass, is called the mag- 

 netic amplitude, and the difference 

 between this and the true amplitude is 

 the variation of the compass, or the am- 

 flitvdt of azimuth, and is found hy the 

 azimuth-compass. The amplitude of the 

 range of a projectile is the horizontal line 

 subtending the path of the body, or the 

 line which measures the distance it has 

 moved. 



AMPUI/LA, literally, a large-bellied 

 bottle. 1. In chemistry, any bellied vessel, 



as a bolt-head, receiver, cucurbit. 2. 



In anatomy, the dilated part of the mem- 

 branaceous semicircular canals of the ear. 

 3. In botany, a small membranacepus 

 bag, attached to the roots and the im- 

 mersed leaves of some aquatic plants, 

 rendering them buoyant. 4. In patho- 

 logy, the same with Sulla (q. v.). 



AMPCLLACE'RA, from ampulla, a. bellied 

 bottle ; the name given by M. Quoy to a 

 genus of Turbidse, to which Swainson 

 gives the name Thallicern. 



AMPDLLARIA, from ampulla, a bellied 

 bottle, a river shell of warm climates, 

 called the apple-snail, from the form of 

 the shell. It belongs to the trochoid fa- 

 mily of Cuvier, but Swainson places it 

 among the Turbidze or marine snails. 



AMPULLABI'N^, from ampulla a bellied 

 bottle ; a sub-family of Turbidae, " most 

 like the garden - snails ; they are generally 

 globose, the spire is very short, and the 

 bo< Vhorl enormous." Their typical 

 genus is the ampullaria. 



AM'TLET, Lat. amuletum, from amolior, 

 to repel. A gem, stone, piece of metal, 

 paper, or other substance, usually in- 

 scribed with mystical characters, words, 

 sentences, numbers, or other devices, 

 commonly worn suspended from the neck, 

 or carried about the person, from a belief 

 that it had the power of averting evil, as 

 witchcraft, poverty, Ac. ; or of conferring 

 some particular gift, as strength, courage, 

 eloquence, &c. Amulets are distinct from 

 prophilactics, which were supposed to 

 prevent disease. 



AMYGDALA, otfurytetkii- 1. The fruit of 

 the almond-tree (Amygdalut commimu). 

 2. The tonsils are called amygdala, 

 from, their shape. 



AMYODA'LEJ:, in botany, a tribe of the 

 natural family Rosaces-, of which the 

 genus amygdalus is the type. The peach, 

 plum, and apricot are examples. 



AMYODALO'ID, from 

 almond, and t/Se?, likeness. 1. As a 

 name, toadstone : a volcanic or igneous 

 rock, of any composition, containing 

 nodules of other minerals embedded 

 plentifully in it: "cellular volcanic rock, 

 having its cells occupied with nodules of 

 a dissimilar substance." 2. As an ad- 

 jective, almond-shaped. 



AMYO'DALCS, the generic name of the 

 almond-tree, of which there are eight 

 species, mostly natives of Asia. Class 

 icosandria, order monogynia. Name 

 tyMpfcrtMi an almond. 



AMYLA'CZOUS, pertaining to, or possess- 

 ing the properties of, starch (amylum). 



AMY'LIC, amylaceous. Amylic acid is 

 obtained from starch by distillation with 

 peroxide of manganese. 



AMYLI'NE, a substance between gum 

 and starch, called also amidine. 



AMYRALDISM, the doctrine of universal 

 grace, as explained by Amyraldus or 

 Amyrault, of France, in the 17th cen- 

 tury. 



AM Y'RIS, the generic name of the balsam- 

 tree, of which there are several species, 

 all natives of the hotter climates. Class 

 octandria, order monogynia. Named from 

 au.i/%av, odorous ointment, in the compo- 

 sition of which it is much used. Gum- 

 elemi is obtained from an American spe- 

 cies (A. elemifera), and the balm of Gilead 

 from the A. Gileadensis, which grows in 

 Abyssinia and Arabia. 



ANA. 1. In medical prescriptions means 



"of each." S<; A. 2. As an affix to 



names of celebrated persons, ana denotes 

 a collection of their memorable sayings, 

 anecdotes of them, extracts from their 

 works, &c. 



ANABAP'TISTS, a sect who hold the doc- 

 trine of the validitv of infant baptism, and 

 the necessity of rebaptization at an adult 

 age; and who maintain that baptism 

 ought to be performed by immersion. 



AN 'ABAS, the paneiri or tree-climber ; a 

 peculiar acanthopterygious fish common 

 in India, which, it is asserted, not only 

 leaves the water, but climbs trees on the 

 banks of rivers : hence its name from 

 >,, to ascend. 



AN'ABLEPS, a genus of malacopterygious 

 fishes which inhabit the coast of Surinam. 

 They are characterized by a remarkable 

 projection of the eyes, and a still more 

 singular structure of the cornea and 

 iris, from which there results two pupils, 

 and the eyes appear to be double on each 

 side. They have, however, but one cry- 

 stalline lens, one vitreous humour, and one 

 retina. Name from ettapte, to raise 

 the eyes. 



ANACAM'PEBOS, a genus of shrubaceous 

 plants of ten species, belonging to the 

 Cape Of Good Hope. Class dodtcandria, 



