So´leus, n. A muscle of the leg.
Spat´ulate, a. Spoon-shaped; contracted near the end, where enlarged.
Spe´cies, n. Aggregate of individuals related by genetic succession without notable change of physical characters.
Specif´ic, a. Of, or relating to, a species; as, specific name, specific character.
Spec´ulum, n. Mirror; brightly colored area on the secondaries, especially of ducks.
Sperm, n. The secretion of the testicles; same as semen.
Spermat´ic, a. Pertaining to semen, or to the organs concerned in its production and emission.
Spermatozo´a, n. pl. Essence of the male seed.
Sphe´noid (bone), n. A compound bone of the skull, constituting much of the second cranial segment.
Sphenoid´al, n. Relating to the sphenoid.