/ Dictionary / Index C corpuscular radiation: Meaning and Definition of Find definitions for: corpus'cular radia'tion Pronunciation: [key] — Physics, Astron. Physics,Astron. radiation consisting of atomic and subatomic particles, as alpha particles, beta particles, and neutrons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. corpuscle corpuscular theory Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language