Olfac´tory, a. Pertaining to the sense of smell.
Oligomy´oid, a. Having few or imperfect syringeal muscles among Passeres.
Oligoto´kous, a. Producing few young.
Oliva´ceous, a. Of a mixed green and brown color.
Omniv´orous, a. Eating anything; feeding indiscriminately.
O´moplate, n. Shoulder-blade. (Omo-, in composition, is a prefix referring to the shoulder.)
Om´phalos, n. Same as umbilicus, navel.
Oölog´ical, a. Pertaining to oölogy.
Oöl´ogy, n. Science of birds’ eggs.
Oper´culum, n. Lid or cover; flap. The nasal scale, or roofing of the external nostrils, is the operculum naris.