/ Dictionary / Index S selenous: Meaning and Definition of Find definitions for: se•le•nous Pronunciation: (su-lē'nus, sel'u-), [key] — adj. Chem. selenious. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. selenotropism Seler Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language