GLOSSARY. 83 
Ale (L. a/a, a wing.)—Applied to the wing-like pro- 
cesses of bone. 
Alinasal process (L. a/a, and zxasus, the nose)—A 
process surrounding the nasal aperture in 
Amphibians. 
Alisphenoid (L. a/a, and os sphenoids).—A distinct 
bone in certain skulls; in human anatomy it 
is represented by the great wings and ex- 
ternal pterygoid plates of the sphenoid. 
Alveolus (L. a/veolus, a little hollow).—A hollow or 
depression, e.g. the socket of a tooth. 
Amphiarthrosis (Gr. awphz, both; arthron a joint).— 
A class of mixed articulation with partial 
mobility (see symphysis). 
Amphicelus (Gr. amphz, both ; kozlos, hollow).— 
Applied to vertebree having a concavity at 
either end. 
Ampulla (L. ampullor, 1 swell out).— The dilated 
portions of the semicircular canals of the 
internal ear. 
Anapophysis (Gr. aza, upon; apfophuo, | grow).—A 
process on the neural arch of certain lum- 
bar vertebra; in human anatomy termed 
accessory process. 
Anchylosis(Gr. azkule, a thong or clasp).—The union 
of two or more bones. 
Angular (L. angu/us, a corner)—An element of the 
mandible in certain Vertebrata. 
Angulo-splenial (L. avzgu/us, and splenzum, a splint). 
An element of the mandible in some Verte- 
