Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun allotrope

1 sense of allotrope

Sense 1
allotrope -- (a structurally different form of an element; "graphite and diamond are allotropes of carbon")
       => chemical element, element -- (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)