noun Crystallography.

the ability of certain different elements to exist in place of each other in certain points of a space lattice; isomorphism.

Origin of diadochy

irregular < Greek diadochḗ succession; see diadochokinesia
Related formsdi·a·doch·ic [dahy-uh-dok-ik] /ˌdaɪ əˈdɒk ɪk/, adjective
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British Dictionary definitions for diadochy



geology the replacement of one element in a crystal by another

Word Origin for diadochy

C20: from Greek diadochē succession
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