Webster's Revised Unabridged Dictionary · 1913

Macule

Macule , noun

[French macule. See Macula.]

1.
A spot. [Obsolete]
2.
(Printing) A blur, or an appearance of a double impression, as when the paper slips a little; a mackle.

Macule , transitive verb

[Compare French maculer. See Maculate, v.]

(Printing) To blur; especially (Printing), to blur or double an impression from type. See Mackle.