Meaning of nightrider

night•rid•er

Pronunciation: (nīt'rī"dur), [key]
— n.
  1. one of a band of mounted men, esp. in the southern U.S. during Reconstruction, who committed nocturnal acts of violence and intimidation against blacks and black sympathizers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: