Blotch (&?;), n. [Cf.
OE. blacche in blacchepot blacking pot, akin to black, as bleach is akin to bleak. See Black, a., or cf. Blot a spot.]
1.
A blot or
spot, as of
color or of
ink; especially a large or irregular spot. Also Fig.; as,
a moral blotch.
Spots and blotches . . . some red, others yellow.
Harvey.
2. (Med.) A large pustule, or a
coarse eruption.
Foul scurf and blotches him defile.
Thomson.
Hear it pronounced