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Definition of subunit

subunit

/ˈsʌbˌjuː.nɪt/
sub · u · nit
Plural:subunits
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subunit Lexical Profile

subunit Game Scores & Validity

• noun

1

A distinct, self-contained division, section, or component that forms part of a larger whole or unit.

Example

"Each administrative subunit within the agency is responsible for managing its own annual budget."

2

In biochemistry, a single protein molecule that assembles with other protein molecules to form a functional multiprotein complex.

Example

"Adult human hemoglobin is a tetramer composed of two alpha and two beta polypeptide subunits."

Synonyms
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Antonyms
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• Nearby Words

subtropics
subtweet
subtype
subunit
suburb
suburban
suburbanite

Cite this Entry

Wordmom. (2026). Definition of Subunit. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/subunit
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