/ Dictionary / Index P Poynting-Robertson effect: Meaning and Definition of Find definitions for: Poyn'ting-Rob'ert•son effect" Pronunciation: (poin'ting-rob'urt-sun), [key] — Astron. Astron. the slowing down and consequent spiraling inward of small particles orbiting the sun, due to their interaction with solar radiation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. poyntell Poza Rica de Hidalgo Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language