What does "allotropism" mean?

The ability (of an element) to exist in more than one physical form without change of state.

How do you pronounce "allotropism"?

Pronounced //æloʊˈtroʊpɪzəm//.

Common synonyms include: allotropy, allotropy, diversification, diversity, multiplicity, nonuniformity.

//æloʊˈtroʊpɪzəm// noun

noun ·Rare ·Advanced level

Noun

1
The ability (of an element) to exist in more than one physical form without change of state.
2
the phenomenon of an element existing in two or more physical forms wordnet

From allo- + -tropism.

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