Answer: affine

AnswerCrossword Clue
AFFINE

Treat raw sugar in a way

AFFINE

Mathematical transformation

AFFINE

In-law

AFFINE
Refine.
AFFINE
Subject raw sugar to a preliminary washing
AFFINERelative by marriage.
AFFINEBrother-in-law, e.g.
AFFINEAny in-law
AFFINEPerson related by marriage