English Reference

Word

polymorphism

Phoneticspoly·mor·phism

/ˌpɑˌɫiˈmɔɹfɪzm/

Definitions

01general ability to change form

C1

n. the ability of something to have or take many different forms or shapes.

n. the general capacity of an entity or concept to assume different forms, appearances, or structures.

“The artist was fascinated by the polymorphism of the clouds as they shifted in the wind.”

“The inherent polymorphism of the myth allows it to be adapted across vastly different cultures without losing its core narrative power.”

Formal

Synonyms

variationdiversitymultiformity

Antonyms

uniformitymonomorphism

02programming and data

C2 · Computing

n. a way of writing code where one command can work with different types of data.

n. a programming language feature that allows values of different data types to be handled through a uniform interface.

“Using polymorphism, the program can print both text and images using the same function.”

“By implementing polymorphism, the developers ensured that the 'draw' method could be applied to any shape object regardless of its specific class.”

Technical

Usage

Often used in the context of 'object-oriented programming' (OOP).

03biology and genetics

C2 · Science

n. when two or more clearly different body types or genes exist in the same species.

n. the occurrence of two or more clearly different phenotypes or genotypes within the same population of a species.

“The different wing patterns on the same type of butterfly are a great example of polymorphism.”

“Researchers studied the genetic polymorphism within the colony to understand how certain individuals survived the viral outbreak while others did not.”

Technical

Synonyms

genetic variationmorphology

04chemistry and materials

C2 · Science

n. the ability of a solid material to exist in more than one crystal structure.

n. the ability of a solid material to exist in more than one form or crystal structure while remaining the same chemical compound.

“Carbon shows polymorphism because it can exist as both soft graphite and hard diamond.”

“The pharmaceutical company had to carefully control the polymorphism of the drug, as different crystal forms could affect how fast the medicine dissolved.”

Technical

Synonyms

allotropypleomorphism

Real-World Examples

“Compared with earlier work, the researchers examined a much broader portion of the genome and analyzed thousands of genetic differences called single nucleotide polymorphisms (SNPs).”
ScienceDaily · 22 Sept 2026

Etymology

From poly- + -morphism.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domains

BiologyMathematicsProgramming

This entry

Level
C2 · Proficiency
Frequency
Occasional
Updated

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English Reference