polymorphism

One interface, many forms

Polymorphism is the occurrence of different forms.

In biology, it describes species with multiple distinct forms—different colorations, body types, or life stages within the same population.

In chemistry, it's when a substance crystallizes in more than one structure.

In programming, polymorphism allows code to work with objects of different types through a shared interface: The function uses polymorphism to handle both circles and rectangles.

The core idea across all uses is variation in form while maintaining identity.

genetics

allele

Gene variant at one locus

  • geneHereditary information unit
  • mutationPermanent DNA alteration
  • genotypeOrganism's complete allele set

phenotype · DNA · locus · variant · chromosome · genetic diversity · codominance · heredity · genomics · recessive

programming

inheritance

Property received from ancestors

interfaces · classes · methods · encapsulation · abstraction · compile-time · runtime · generics · templates · dispatch

biology

dimorphism

Two distinct forms

  • phenotypeObservable characteristics of organism
  • mimicryAdaptive resemblance to another
  • camouflageConcealment through visual blending

caste · life cycle · variation · natural selection · sexual selection · queen · worker · soldier

linguistics

polysemy

Word having related meanings

inflection · conjugation · declension · stem · affix · phonological · paradigm · grammatical · variation

crystallography

crystal structure

Ordered atomic arrangement in solids

lattice · solid state · pharmaceutical · solubility · stability · thermodynamic · kinetic · transformation · habit · diffraction

Categories
Opposites
form variability

polymorphismuniformity

State of being identical

monomorphic · invariance · homogeneity · constancy · fixedness

genetic/biological variation

polymorphismfixation

Persistent mental attachment

homozygosity · invariance · inbreeding

Family

polymorphic

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