/ Dictionary / Index G grow light: Meaning and Definition of Find definitions for: grow' light" Pronunciation: [key] a fluorescent light bulb designed to emit light of a wavelength conducive to plant growth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. growler growly Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language