/ Dictionary / Index S subclavian: Meaning and Definition of Find definitions for: sub•cla•vi•an Pronunciation: (sub-klā'vē-un), [key] — Anat. Anat. —adj. situated or extending beneath the clavicle, as certain arteries or veins. pertaining to such an artery, vein, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: subclavian (Thesaurus) subclavate subclavian artery 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