Polymorphism  

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Polymorphism or dimorphism may refer to:

Biology

• Polymorphism (biology), including:
  • having multiple phenotypes within a population; the switch that determines which phenotype an individual displays can be genetic or environmental
    • includes Sexual dimorphism, differences in the physiology of a species based only on sex
  • having multiple alleles of a gene within a population, usually expressing different phenotypes
• Lipid polymorphism, the property of amphiphiles that gives rise to various aggregations of lipids
• Nuclear dimorphism, when a cell's nuclear apparatus is composed of two structurally and functionally differentiated types of nuclei
• Frond dimorphism, differing forms of fern fronds between the sterile and fertile fronds

Computing

• Polymorphism (computer science), allowing program code to work with various types
  • Polymorphism in object-oriented programming, the ability of an interface to be realized in multiple ways
• Dialog polymorphism, changing the form of a computer dialog every time it is presented to a user, in order to prevent habituation
• Polymorphic code, self-modifying program code designed to defeat anti-virus programs or to defeat reverse engineers

Chemistry

• Polymorphism (materials science), the ability of a solid material to exist in more than one form or crystal structure

Medicine

• A type of QRS complex seen on an electrocardiogram

Psychology

• Polymorphous perversity, a concept in psychoanalytic theory

See also

• Polymorph (disambiguation)
• Monomorphic (disambiguation)