/ Dictionary / Index S subclavius: Meaning and Definition of Find definitions for: sub•cla•vi•us Pronunciation: (sub-klā'vē-us), [key] — pl. -vi•i a small shoulder muscle, the action of which assists in depressing the shoulder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subclavian vein subclimax Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language