A GLOSSARY OF TERMS 



A.TRotfA'sus. - Specific name of the 

 Minnow. 



AT'ROPA. fr. gr. atropos, " the God- 

 dess of Destiny; so called from 

 its fatal effects. Name of a ge- 

 nus of plants. 



AT'ROPHIED. fr.gr. a, priv. ; trophe, 

 nourishment : without nourish- 

 ment. Wasted : when the whole 

 bulk of the body is progressively 

 and morbidly diminished, or 

 wasted, it is said to be atrophied, 

 or in a state of atrophy. 



A'TROPOS. Greek name of one of 

 the Fates. A genus of insects. 



A'TROPOCS. fr. gr. a, priv. ; trepo, to 

 turn. That which is not inverted ; 

 in botany, applied to the erect 

 ovule. 



ATTENUATE. Made thin or slen- 

 der: tapering. 



AUCHE'NIA. fr.gr. auchen, the neck. 

 The genus of animals to which 

 the Llama belongs, is so called, 

 probably from having a long neck. 



AUDITO'HIUS. Lat. Belonging or 

 relating to the sense of hearing. 



AU'DITORY. Belonging or relating 

 to the sense of hearing. 



AU'GITE. fr. gr. auge, lustre. A 

 mineral, the same as pyroxene. 



AU'GITIC-PORPHYRY. Crystals of 

 Labrador feldspar, and of augite 

 in a green or dark-grey base. 



ATJXOSTO'MIDES. fr. gr. aulos, flute, 

 tube; stoma, mouth. A family of 

 fishes characterised by the head 

 being elongated like a tube. 



AURA. Lat. An air or emanation. 

 The specific name of a kind of 

 vulture. 



ACRANTIA'CE^. fr. lat. aurantium, 

 an orange. Name of an order of 

 plants. 



AUKA'NTIUM. Lat. An orange. 



AURA'TUS. Lat. Gilded; golden. 



AURE'LIA. fr. lat. aurum, gold. Chry- 

 salis. A fanciful name for the 

 nymph or pupa state of insect 

 life, from the glittering spots of 

 golden hue, with which it is some- 

 times speckled. 



AU'REUS. Lat. Golden. Relating 

 to gold. 



AUR'ICLE. fr. lat. auri'cula, the di 

 minutive of auris, ear. A part 

 of the heart is so called from its 

 resemblance to an ear. Also ap- 

 plied to a part of the ear. 



AURI'CULA. fr. lat. owns, an ear. 

 Name of a shell, from its resem 

 blance to the human ear. 



AURI'CTJLATE. fr. lat. auricula, a 

 little ear. A form of leaf which 

 has ear-like lobes or projections 

 at the base. 



AuRi'ctrLO-VES'TRi'cui.AR (opening). 

 The aperture betwixt the au- 

 ricle and ventricle of the heart is 

 so called. 



AU'RIFORM. fr. lat. auris, ear ; for- 

 ma, shape. Ear-shaped. 



AUROCH. A sort of wild bull. 



AUTOMA'TIC. fr. gr. autos, self; ma- 

 ten, easily; or automates, sponta- 

 neously. That which acts of it- 

 self. Automatic movements, are 

 those which depend on the struc- 

 ture of the body, and are inde- 

 pendent of the will, such as that 

 of respiration, the circulation of 

 the blood, &c. 



AUTUMNA'LIS. Lat. Autumnal. 



AVALA'NCHE. A mass of hardened 

 snow, which, becoming detached 

 from lofty mountains, and acquir- 

 ing enormous bulk and momen- 

 tum in its descent, overturns eve- 

 rything in its way, often causing 

 great destruction. Applied also 

 to slides of earth and clay. 



AVA'BTTURIXE. fr. fr. par aventure, 

 by chance. A variety of quartz, 

 containing mica spangles. 



AVELLAXA'RIUS. fr. lat. avellana, a 

 filbert. Relating or belonging to 

 filberts. 



A'VEXA. Lat. Oats. 



A' YES. Lat. Birds. The fourth 

 class of vertebrate animals. 



AVI'CULA. fr. lat. avis, a bird. Name 

 of a genus of bivalve mollusks. 

 (Fig. 95, p. 75, Book v.) 



ATICULA'BIS. fr. lat. avicula t the 



