/ Dictionary / Index H humicolous: Meaning and Definition of Find definitions for: hu•mic•o•lous Pronunciation: (hy-mik'u-lus or, often, y-), [key] — adj. Biol. of or pertaining to organisms that live in or on soil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. humic acid humid Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language