dimorphism

Noun dimorphism has 2 senses

• dimorphism(n = noun.phenomenon) - (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms;
is a kind of pleomorphism, polymorphism

• dimorphism(n = noun.phenomenon) - (biology) the existence of two forms of individual within the same animal species (independent of sex differences);
is a kind of polymorphism