/ Dictionary / Index S spectroscopic binary: Meaning and Definition of Find definitions for: spec'troscop'ic bi'nary Pronunciation: [key] — Astron. Astron. a binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spectroscope spectroscopy Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language