/ Dictionary / Index H humectant: Meaning and Definition of Find definitions for: hu•mec•tant Pronunciation: (hy-mek'tunt or, often, y-), [key] — n. a substance that absorbs or helps another substance retain moisture, as glycerol. —adj. moistening; diluting. of or pertaining to a humectant or humectants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: humectant (Thesaurus) Hume humeral Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language