/ Dictionary / Index N neutrino astronomy: Meaning and Definition of Find definitions for: neutri'no astron"omy Pronunciation: [key] the branch of astronomy dealing with the detection and measurement of neutrinos emitted by the sun and other celestial objects. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. neutrino neutro- Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language