from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The systematic practice of discriminating against and segregating Black people, especially as practiced in the American South from the end of Reconstruction to the mid-20th century.
- adj. Upholding or practicing discrimination against and segregation of Black people: Jim Crow laws; a Jim Crow town.
- adj. Reserved or set aside for a racial or ethnic group that is to be discriminated against: "I told them I wouldn't take a Jim Crow job” ( Ralph Bunche).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A generic name for the Negro.
- proper n. Southern United States racist and especially segregationist policies in the late 1800s and early to mid 1900s, taken collectively.
- n. A World War II code name for patrols along the British coastline to intercept enemy aircraft, originally intended to warn of invasion in 1940.
- adj. Discriminatory against African Americans.
- adj. Segregated between African Americans and Caucasians.
From obsolete Jim Crow, derogatory name for a Black person, ultimately from the title of a 19th-century minstrel song.(American Heritage® Dictionary of the English Language, Fourth Edition)
From the minstrel show song "Jump Jim Crow", written in 1828 by Thomas D. Rice, the originator of blackface performance. (Wiktionary)