Adjective "affine" definition and examples



Definitions and examples


Allowing for or preserving parallel relationships.
  1. 'Using parallelograms to define affine transformations may be a mixed blessing.'
  2. 'Our interest is in the space of affine equivalence classes of equal-area polygons.'


A relative by marriage.
  1. 'When a dying person breathes his/her last breath, close relatives, normally affines, wash and put new clothes on the body.'
  2. 'In addition to kins and affines, almost all the villagers are invited to join in.'



1. a person related to one by marriage.

adjective, Mathematics.

2. assigning finite values to finite quantities.

3. of or relating to a transformation that maps parallel lines to parallel lines and finite points to finite points.


Early 16th century (as a noun): from Old French afin or Latin affinis ‘related’ (see affinity). The mathematical sense dates from the early 20th century.