Buckyball and Fullerene

Buckyball noun - A spheroidal fullerene; the first known example of a fullerene.

Fullerene and buckyball are semantically related. In some cases you can use "Fullerene" instead a noun "Buckyball".

Fullerene noun - A form of carbon having a large molecule consisting of an empty cage of sixty or more carbon atoms.

Buckyball and fullerene are semantically related. Sometimes you can replace term "Buckyball" with "Fullerene", this nouns are similar.