Math. of or having to do with projecting or mapping a geometric figure on a second plane or surface so that the new image retains the original parallel straight lines while being shifted, stretched, etc.
Origin:
< L affinis: see affinity
See affine in American Heritage Dictionary 4
adjective Mathematics
Of or relating to a transformation of coordinates that is equivalent to a linear transformation followed by a translation.
Of or relating to the geometry of affine transformations.