/ Dictionary / Index L locum: Meaning and Definition of Find definitions for: lo•cum Pronunciation: (lō'kum), [key] — n. Brit. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: locum (Thesaurus) loculus locum tenens Related Content Daily Word Quiz: acme Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language