536 



GLOSSARY. 



.Am'nion, n. A certain organ of the embryo. 



Amo'tus, a. Denoting the hind toe so ek'vatecl 

 and short that the tip does not touch the 

 ground. (132.) 



Amphiarthro'dial, a. Denoting a sliding 

 joint, or one capable of mixed movement. 



Amphiccel'ian, a. Said of a vertebra when both 

 ends of its centrum are cupped. Correspond- 

 ing terms are procoelian, cupped in front, and 

 opisfhoccelian, cupped behind. 



Ampul'la, n. A certain cavity of the inner ear. 



A'nal, a. Pertaining to the anus ; situated 

 about the anus. 



Analog'ical, a. Having analogy ; related by 

 analogy. 



Anal'ogy, n. Quality of likeness in certain 

 (generally superficial or inconsiderable) re- 

 spects, between things essentially nnlike. 

 There may be analogy entirely without homol- 

 ogy, as between the wing of a bird and of a 

 butterily. 



Anastomo'sis, 11. Inosculation or intercom- 

 munication of two or more vessels. 



An'atine, «. Duck-like. 



Anchylo'.sis or Ankylo'sis, n. Restriction or 

 loss of motion in a naturally movable joint ; 

 also, any coossification. 



An'conal, a. Pertaining to the elbow. 



Angle of Chin = Angulus Menti. (23.) 



Angle of Mouth = Angulus Oris. (27.) 



An'gulus O'ris, n. Corner of the mouth ; 

 equivalent to commissural point. 



An'notine, n. A bird one year old, or which 

 has once moulted. 



An'nular, a. Ringed. 



An'nulu.s, n. Ring. 



Anom'alous, a. Extremely irregular ; very 

 strange or unusual ; contrary to natural order 

 (nearly synonymous with abnormal). 



An'serine, a. Pertaining to the Anseres ; 

 goose-like. 



An'te- («i composition). Before ; as, anteocu- 

 lar, anteorhital, etc. 



Anterior, a. Forward ; in front of. 



Anterior Portion. (7.) See Stethi^um. 



Anterior Toes. (124.) 



An'ti- (m com.position). Against. 



An'ti^e, 71. pi. Frontal points ; projections of 

 feathers on either side of base of culmen. (36.) 



Antibrach'ium, n. Cubit or forearm. 



A'nus, n. Outlet of refuse of digestion. In 

 birds, the same orifice discharges the products 

 of the genito-nrinary organs. 



Aok'ta, n. The first great artery, immediately 

 issuing from the left ventricle of the heart. 



Aor'tic, a. Pertaining to the aorta. 



Apertu'ra, 7). An opening ; as, apci-tura auris. 

 ear-opening. 



A'PEX, n. ; pi. apices. Tip or point of anything. 



Apohy'al, a. A portion of the "horn " of the 

 hyoid bone. 



Aponeuro'.sls, n. Broad, strong, fibrous mem- 

 brane or band ; fascia. 



Apoph'ysis, n. Any natural bony prominence 

 of notable size. 



Apposed', a. Mutually fitted, adapted ; set 

 over against; meeting closely and exactly. The 

 tomia of the bill are usually apposed. 



Apte'rium, n. ; pi. apteria. Tract of skin where 

 no feathers grow. Compare Pteryla. 



Aquat'ic, a. Pertaining to the w'ater ; said of 

 birds frequenting water, and thence drawing 

 subsistence. 



A'queoxjs, a. Watery. Said of the fluid in the 

 anterior chamber of the eye. See Vitreous. 



Aq'uiline, a. Eagle-like ; belonging to the 

 Aquilince. 



Arach'noid, n. One of the three enveloping 

 membranes of the brain, between the dura 

 mater and the pia mater. 



Arbor'icole, a. Tree-inhabiting. 



Arch'etype, n. Original plan oi' idea of struc- 

 ture, modified or lost by subsequent special- 

 ization. 



Archetyp'ical, a. Having the primitive pat- 

 tern or original plan of structure. 



Arc'uate, a. Bow-shaped ; bent regularly and 

 gradually. 



Are'ola, 11. ; pi. areolce. Small naked space on 

 the feet between scales. 



Are'olar Tissue. The light cellular connec- 

 tive tissue of the body. 



Armil'la, 11. Ring of color, like a bracelet, 

 around lower end of cms. 



Arm'pit, n. (78.) See Axilla. 



Arte'rial, a. Pertaining to arteries ; as, arte- 

 rial system, arteiial blood. 



Ar'tery, 11. Vessel conveying blood from the 

 heart. 



Articula'tion, 11. A joining together ; joint. 



Artic'ulus, 11. Joint of a finger or toe (com- 

 monly used to signify the hinge itself, but 

 better to designate any one of the segments 

 joined by articulation). 



Artifi'cial, a. Elaborate ; skilfully or art- 

 fully contrived. Some birds build highly ar- 

 tificial nests. Also, arbitrary ; as, an aii/ificial 

 classification, more or less at variance with 

 that which a natural system may be. 



Ar'tus, n. ; pi. artus. Any member, limb. 



Aryt'enoid, a. Denoting certain ossicles of 

 the larynx. 



Ascar'ides, 11. pi. Certain intestinal parasites. 



Ash or Ash'y, a. Pale gray. 



Aster'nal {ribs), a. Denoting ' ' floating " ribs ; 

 those not joining the sternum. 



Astrag'alus, n. One of two proximal tarsal 

 bones of birds, early confluent with the tibia. 



Asymmet'rical, a. Uneven ; disprojtortion- 

 ate as to opposite, as right and left, parts. 



Asym'metry, n. Disproportion of duplicate 

 parts or organs, or of those which aie repeated 

 on opposite sides of a plane or axis. 



At'avism, n. Reversion, or tendency to revert, 

 to characters of ancestral stock. 



At'las, 11. First cervical vertebra, articulating 

 with the occipital bone. 



Atres'ia, n. Closure. 



At'rophy, n. See Hypertrophy. 



Atten'uate, a. Growing gradually slenderer 

 toward an extremity ; or, nariowly produced 

 for a long distance ; in neitlier case neces- 

 sarily sharp-pointed, which would be rather 

 acuminate. 



Attyp'ical, a. Of particular character acquired 

 in specialization from a common type. 



Auche'nium, 11. Lower back part of neck ; the 

 scrufl". (50.) (Little used.) 



Au'ral or AuRic'uLAR, a. Pertaining to the 

 ear. 



