an experimental plasma-physics device in which magnetic fields confine the plasma within a tube shaped like a figure eight.
Origin of stellarator
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
physics an apparatus used in research into thermonuclear reactions, consisting of a toroidal vessel designed so that a plasma may be contained within it by a helical magnetic field. The magnetic field is produced by current-carrying coils
Word Origin for stellarator
C20: from stellar + (gener) ator
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012