Polymorphism

Polymorphism, polymorphic, polymorph, or polymorphous may refer to:

Computing

Ad hoc polymorphism, applying polymorphic functions to arguments of different types
Polymorphism (computer science), the ability in programming to present the same programming interface for differing underlying forms
Polymorphic code, self-modifying program code designed to defeat anti-virus programs or reverse engineering

Chromosomal polymorphism, a condition where one species contains members with varying chromosome counts or shapes
Gene polymorphism, the existence of more than one allele at a gene's locus within a population
Genetic polymorphism, the branching of the genetic tree, caused by two or more alleles occurring at one DNA position or in one DNA region, each with appreciable frequency in the 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

Polymorphism (materials science), the ability of a solid material to exist in multiple forms or crystal structures known as polymorphs

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 (Red Dwarf character), seen in the series III episode "Polymorph"
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