/ Dictionary / Index L lucid: Meaning and Definition of Find definitions for: lu•cid Pronunciation: (l'sid), [key] — adj. easily understood; completely intelligible or comprehensible: a lucid explanation. characterized by clear perception or understanding; rational or sane: a lucid moment in his madness. shining or bright. clear; pellucid; transparent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lucid (Thesaurus) Lucianne lucida Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language