fusor(redirected from Farnsworth-Hirsch fusor)
Any of a proposed category of celestial objects that undergo nuclear fusion in their cores at some point during their lifetimes, the least massive of which are about 13 times Jupiter's mass and sustain the fusion of deuterium atoms into heavier elements.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.