1. (genetics) the genetic variation within a population that natural selection can operate on 
2. (chemistry) the existence of different kinds of crystal of the same chemical compound
   - pleomorphism 
3. (biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)

Derived forms: polymorphisms

See also: polymorphic

Type of: chemical phenomenon, organic phenomenon

Encyclopedia: Polymorphism

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