AFFINE
affinal, affine
(adjective) (anthropology) related by marriage
affine
(adjective) (mathematics) of or pertaining to the geometry of affine transformations
affine
(noun) (anthropology) kin by marriage
Source: WordNet® 3.1
Etymology
Adjective
affine (comparative more affine, superlative most affine)
(mathematics) Assigning finite values to finite quantities.
(geometry) Of or pertaining to a function expressible as (where is a linear transformation and is a constant), which, regarded as a transformation, maps parallel lines to parallel lines and finite points to finite points.
(comparable, chemistry) Of two materials, having mutual affinity.
Noun
affine (plural affines)
(anthropology, genealogy) A relative by marriage, an in-law.
Synonyms
• (relative by marriage): in-law
Verb
affine (third-person singular simple present affines, present participle affining, simple past and past participle affined)
To refine.
Source: Wiktionary
Af*fine", v. t. Etym: [F. affiner to refine; (L. ad) + fin fine. See
Fine.]
Definition: To refine. [Obs.] Holland.
Source: Webster’s Unabridged Dictionary 1913 Edition