O´mo. [Gr. ωμος, ōmos, the shoulder.] Names compounded of this word are applied to muscles attached to the shoulder.
Oph-thal´mic. [Gr. οφθαλμος, ophthalmos, the eye.] Belonging to the eye.
Op-po´nens. That which acts in opposition to something. The name of two muscles of the hand.
Op´ti-cus, Op´tic. [Gr. οπτομαι, optomai, to see.] Relating to the eye.
Or-bic´u-lar. [L. orbis, a circle.] Circular.
Or-bic-u-la´ris. A name applied to several muscles.
Or´gan. A part of the system destined to exercise some particular function.
Or´i-gin. Commencement; source.
Os. [L.] A bone; the mouth of any thing.