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.
SPHINC´TER, _n._ An annular muscle constricting or closing a natural
orifice; especially, _sphincter ani_.
SPI´NAL, _a._ Relating to the backbone.
SPINA´LIS, _a._ for _n._ Name of a certain muscle of the back.
SPINE, _n._ Backbone. Also, any sharp projecting point of bone or horn.
SPINOSE´ or SPI´NOUS, _a._ Sometimes said of a mucronate feather.
SPLANCH´NIC, _a._ Visceral.
SPLANCHNOL´OGY, _n._ Science or study of the viscera.
SPLEEN, _n._ A deep red, soft, spongy, ductless and extremely vascular,
abdominal organ of uncertain function.
SPLE´NIAL, _a._ Name of a certain element of the mandible.
SPLE´NIUS, _a._ for _n._ A certain cervical muscle.