Am´nion, n. A certain organ of the embryo.
Amo´tus, a. Denoting the hind toe so elevated and short that the tip does not touch the ground. (132.)
Amphiarthro´dial, a. Denoting a sliding joint, or one capable of mixed movement.
Amphicœl´ian, a. Said of a vertebra when both ends of its centrum are cupped. Corresponding terms are procœlian, cupped in front, and opisthocœlian, 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) respects, between things essentially unlike. There may be analogy entirely without homology, as between the wing of a bird and of a butterfly.
Anastomo´sis, n. Inosculation or intercommunication of two or more vessels.
An´atine, a. Duck-like.