Definitions for mc-
Random House Webster's College Dictionary
master of ceremonies.
Member of Congress.
var. of Mac-.
a combining form, used esp. to form nonce words, with the meaning “generic; homogenized”:
McSchools that offer no individual attention; reading McNews instead of a serious newspaper.
Category: Common Vocabulary
Origin of Mc-:
<Mc(Donald's), chain of fast-food restaurants
A patronymic used to form common Irish and Scottish names, similar to the English -son.
Used in combination with a non-name descriptive word to form mock names, typically as an insult.