isomorphism noun. [ʌɪsǝ(ʊ)'mɔ:fɪz(ǝ)m] E19.
[formed as ISOMORPH + -ISM.]
1. Chemistry & Mineralogy. The property of crystallizing in the same or closely related forms, esp. as exhibited by substances of analogous composition. E19.

2. Math. & Philosophy. Identity of form and operations between two or more groups or other sets; an exact correspondence as regards the number of constituent elements and the relations between them; spec. a one-to-one homomorphism. L19.

3. Biology. A similarity of appearance displayed by organisms having different genotypes. E20.

4. Psychology. A correspondence assumed to exist between the structure of mental events and that of the underlying neural events. M20.

[TahlilGaran] English Dictionary ▲