{{wiktionary|polymorphism|polymorph|polymorphic|polymorphous|polymorphy}} '''Polymorphism''', '''polymorphic''', '''polymorph''', '''polymorphous''', or '''polymorphy''' may refer to: {{TOC right}}

==Computing== * Polymorphism (computer science), the ability in programming to present the same programming interface for differing underlying forms * Ad hoc polymorphism, applying polymorphic functions to arguments of different types * Parametric polymorphism, abstracts types, so that multiple can be used with a single implementation ** Bounded quantification, restricts type parameters to a range of subtypes * Subtyping, different classes related by some common superclass can be used in place of that superclass * Row polymorphism, uses structural subtyping to allow polymorphism over records * Polymorphic code, self-modifying program code designed to defeat anti-virus programs or reverse engineering

==Science==

===Biology=== * Chromosomal polymorphism, a condition where one species contains members with varying chromosome counts or shapes * Cell polymorphism, variability in size of cells or nuclei * Gene polymorphism, the existence of more than one allele at a gene's locus within a population * Lipid polymorphism, the property of amphiphiles that gives rise to various aggregations of lipids * Polymorphic, a wave pattern seen on an electrocardiogram; see QRS complex * Polymorphism (biology), the occurrence of more than one form in the same population of a species * Polymorphism (RLFP), a technique that exploits variations in homologous DNA sequences

===Other sciences=== * Crystal polymorphism, the existence of a solid material in two or more crystal structures, known as polymorphs * ''Polymorph'', a marketing name for polycaprolactone, a type of thermoplastic which fuses at 60 °C

==Fiction== * Polymorph, a shapeshifting being in: ** "Polymorph" (''Red Dwarf''), third episode of series III of the science fiction sitcom ** "Emohawk: Polymorph II", fourth episode of series VI of the science fiction sitcom ** ''Polymorph'' (novel), a 1997 cyberpunk novel by Scott Westerfeld * Polymorph, a magical spell in many fantasy role-playing games that transforms a target into one of many different creatures for a period of time

==See also== * {{Intitle}} * Dimorphism (disambiguation) * Monomorphic (disambiguation) * Polymorphism in Lepidoptera * Shapeshifter (disambiguation)

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