Bunnyball

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An osmylated C₆₀ molecule.

Etymology

From bunny + ball, because of its twin "ears" of butylpyridine when viewed under microscopy; modelled on buckyball.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.