/ Dictionary / Index B backscatter: Meaning and Definition of Find definitions for: back•scat•ter Pronunciation: (bak'skat"ur), [key] — n. Physics. the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: backscatter (Thesaurus) backsaw back score Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language