Standard Lemma guide

cofunction

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

The trigonometric function of the complement of the supplied angle.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • Cosine and sine are each other's cofunctions.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A costatement that takes the form of a function and can accept parameters and return a value.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, programming, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin co-der. English co- English function English cofunction From co- + function.

Across languages

Translations

2 source translations are retained for this English entry.

  • Finnish: kofunktio — trigonometric function
  • Tagalog: kakabisa — trigonometric function