/ Dictionary / Index S stilb: Meaning and Definition of Find definitions for: stilb Pronunciation: (stilb), [key] — n. Optics. a unit of luminance, equal to one candle per square centimeter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Stijl, De* stilbene Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language