/ Dictionary / Index S selenotropism: Meaning and Definition of Find definitions for: se•le•no•tro•pism Pronunciation: (si-lē"nu-trō'piz-um, sel"u-nō-), [key] — n. Biol. growth in response to moonlight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. selenology selenous Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language