to bring into close -ssociation or connection:
the research center is affiliated with the university.
to attach or unite on terms of fellowship; -ssociate (usually followed by with in u.s. usage, by to in brit. usage):
to affiliate with the church.
to trace the descent, derivation, or origin of:
to affiliate a language.
to adopt.
law. to fix the paternity of, as an illegitimate child:
the mother affiliated her child upon john doe.
to -ssociate oneself; be intimately united in action or interest.
a branch organization.

a business concern owned or controlled in whole or in part by another concern.
a subsidiary.

a person who is affiliated; -ssociate; auxiliary.
verb (əˈfɪlɪˌeɪt)
(transitive; foll by to or with) to receive into close connection or -ssociation (with a larger body, group, organization, etc); adopt as a member, branch, etc
(foll by with) to -ssociate (oneself) or be -ssociated, esp as a subordinate or subsidiary; bring or come into close connection: he affiliated himself with the union
noun (əˈfɪlɪɪt; -ˌeɪt)

a person or organization that is affiliated with another
(as modifier): an affiliate member


1761, from latin affiliatus, past participle of affiliare “to adopt” (see affiliation). outside legal use, always figurative. related: affiliated; affiliating.

1858, from affiliate (v.).

1846, from affiliate (v.).

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  • Affinal

    related by or concerning marriage.

  • Affine

    a person related to one by marriage. -ssigning finite values to finite quant-ties. of or relating to a transformation that maps parallel lines to parallel lines and finite points to finite points. adjective (maths) of, characterizing, or involving transformations which preserve collinearity, esp in cl-ssical geometry, those of translation, rotation and reflection in an axis

  • Affine geometry

    the branch of geometry dealing with affine transformations.

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    the group of all affine transformations of a finite-dimensional vector sp-ce.

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