/ Dictionary / Index S stellarator: Meaning and Definition of Find definitions for: stel•lar•a•tor Pronunciation: (stel'u-rā"tur), [key] — n. Physics. an experimental plasma-physics device in which magnetic fields confine the plasma within a tube shaped like a figure eight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stellar association stellar wind Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language