Standard Lemma guide
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
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noun
The reversal of the order of data types acted upon by an operator.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: object-oriented programming
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A functor which reverses composition.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: category-theory, computing, engineering, mathematics, natural-sciences, physical-sciences, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Of vectors, the property of scaling inversely with a change of basis, as opposed to covariance.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: linear-algebra, mathematics, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrābor. English contra- English variance English contravariance From contra- + variance.
Across languages
10 source translations are retained for this English entry.
