affine /əˈfaɪn/adjective 3verb 2noun 1forms 5 adjective3 •Assigning finite values to finite quantities. •Of or pertaining to a function expressible as f(⃑x)=A⃑x+⃑b (where A is a linear transformation and ⃑b is a constant), which, regarded as a transformation, maps parallel lines to parallel lines and finite points to finite points.Now, let P, Q, and R be three noncollinear points that are left fixed by an affine transformation T. — 1986 •Of two materials, having mutual affinity. verb2 •To set the CPU affinity of somethingaffined the sequential regions to run only on CPU 0 — 2005 •To refine.The next stage is remelting: the affined sugar is dissolved in hot water and the syrup formed is made alkaline by adding milk of lime. — 2016 noun1 •A relative by marriage. formsaffined · affining · affines · more affine · most affine