buckyball (plural buckyballs)
- (chemistry, informal) A buckminsterfullerene molecule (C60).
- (by extension) The most common types of spheroidal fullerenes, C60 and C70 usually, with additionally C72 and C76 also included at times.
- (by extension) Any spheroidal fullerene, from C20 on upwards.
- carbon nanotube / buckytube
- atomic carbon
- amorphous carbon