noun
Technical term in crystallography: different substances crystallizing in the same or closely similar form.
方解石と菱苦土石は異種同形の関係にある。
Calcite and magnesite are in an isomorphic relationship.
noun
Technical term in genetics: similarity of form or structure between organisms of different species or between different parts of the same organism.
異種同形の遺伝子は、異なる種でも似た機能を持つことがある。
Isomorphic genes can have similar functions even in different species.
Compound of 異種 (different kind) and 同形 (same form). The exact historical derivation is uncertain; the term is used as a technical translation equivalent for 'isomorphism' in crystallography and genetics.