buckyball

noun3

1. •
   (informal) A buckminsterfullerene molecule (C₆₀).
2. •
   (informal) The most common types of spheroidal fullerenes, C₆₀ and C₇₀ usually; with C₇₂ and C₇₆ sometimes also included.
3. •
   (informal) Any spheroidal fullerene, from C₂₀ on upwards.