bullvalene

Etymology
from the nickname of one the scientists who predicted its properties in 1963 and the underlying concept of valence tautomerism, William "Bull" Doering. Chosen to rhyme with.

Noun

 * 1)  A tetracyclic hydrocarbon whose structure is constantly changing between 1,209,600 possible tautomers

Related terms

 * bullvalone
 * semibullvalene