adjoint

Fetched 2026-10-26 (cache).

Synonyms: adjoin, adjoins, abjoint

Antonyms: adjoin, adjoins, abjoint

Related words from Datamuse; suggestions, not definitions.

Adjective

1. {{lb|en|mathematics}} {{non-gloss|Used in certain contexts, in each case involving a pair of transformations, one of which is, or is analogous to, [[conjugate|conjugation]] (either [[inner automorphism]] or [[complex conjugation]]).}}
2. {{lb|en|mathematics|category theory|of a [[functor]]}} That is related to another functor by an [[adjunction]].
3. {{lb|en|geometry|of one curve to another curve}} Having a relationship of the nature of an '''adjoint''' ([[adjoint curve]]); sharing [[multiple point]]s with.

Noun

1. {{lb|en|mathematics}} The [[transpose]] of the [[cofactor matrix]] of a given square matrix.
2. {{lb|en|mathematics|linear algebra|of a [[matrix]]}} [[transpose conjugate|Transpose conjugate]].
3. {{lb|en|mathematics|analysis|of an operator}} [[Hermitian conjugate]].
4. {{lb|en|mathematics|category theory}} A [[functor]] related to another functor by an [[adjunction]].
5. {{lb|en|geometry|algebraic geometry}} A [[curve]] ''A'' such that any point of a given curve ''C'' of [[multiplicity]] ''r'' has multiplicity at least ''r''–1 on ''A''. ''Sometimes the [[multiple point]]s of ''C'' are required to be ordinary, and if this condition is not satisfied the term [[sub-adjoint]] is used.''
6. An [[assistant]] to someone who holds a position in the [[military]] or [[civil service]].
7. An [[assistant]] [[mayor]] of a French [[commune]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.