Allotrope vs. Allotroph: What's the Difference?

A structurally differentiated form of an element that exhibits allotropy.

(rare) heterotroph

(chemistry) Any form of an element that has a distinctly different molecular structure to another form of the same element.

(linguistics) An other form, a different shape of a lexical unit.

(philosophy) An alternative shape of a cognitive structure.

A structurally different form of an element;