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Definition of tertiary

tertiary

/ˈtɝː.ʃiˌɛr.i/
ter · ti · ar · y

Plural:tertiaries
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tertiary Lexical Profile

tertiary Game Scores & Validity

• adjective

1

Third in order, rank, level, or importance.

Example

"Once the primary and secondary goals were met, the team focused on tertiary objectives."


2

Relating to education at the college or university level, following primary and secondary schooling.

Example

"The government increased funding for tertiary education to support university students."


3

Relating to the economic sector that provides services rather than extracting raw materials or manufacturing goods.

Example

"Tourism, banking, and healthcare are major components of the tertiary sector."

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Antonyms
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• noun

1

A color produced by mixing a primary color with an adjacent secondary color, or by mixing two secondary colors.

Example

"The artist blended warm tertiaries like amber and vermilion to paint the autumn leaves."


2

A lay member of the third order of a monastic or religious congregation who lives according to a Rule without taking full monastic vows.

Example

"As a Franciscan tertiary, she dedicated her spare time to charity while maintaining her secular career."


3

One of the inner flight feathers attached to the humerus of a bird's wing.

Example

"The ornithologist identified the gull species by the distinctive white tips on its tertiaries."

Synonyms
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Word Origin & Etymology

Borrowed from Latin tertiarius ('containing a third part, of the third rank'), derived from tertius ('third'), from the Proto-Indo-European root *trei- ('three').

Cite this Entry


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