di·mor·phism /-ˌfɪzəm/
 同種二形,同質二像


 di·mor·phism /-ˌfɪzəm/ 名詞
 二態性,雙態現象,雙型,雙晶現象


 Di·mor·phism n.
 1. Biol. Difference of form between members of the same species, as when a plant has two kinds of flowers, both hermaphrodite (as in the partridge berry), or when there are two forms of one or both sexes of the same species of butterfly.
    Dimorphism is the condition of the appearance of the same species under two dissimilar forms.   --Darwin.
 2. Crystallog. Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.

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 dimorphism
      n 1: (chemistry) the property of certain substances that enables
           them to exist in two distinct crystalline forms
      2: (biology) the existence of two forms of individual within
         the same animal species (independent of sex differences)