fusor
 n.— «Even the smallest planemos would tend to be spherical, conforming to our classical image of a planet. But clearly, not all planemos are planets. Marsden said planets might be defined as planemos that orbit a “fusor”—that is, any object that is generating energy through fusion.» —“Planet-Sized Problems” by Alan Boyle Cosmic Log June 7, 2006. (source: Double-Tongued Dictionary)

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