from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of a number of dots or round spots forming a pattern, as on cloth.
- n. A pattern or fabric with such dots.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a number of uniform round dots, repeated to make a regular geometric pattern on a fabric
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. design consisting of a pattern of regularly spaced circular spots
1871, US, named for polka dance, which was popular at the time (1840–1890). Numerous other products were named for the dance, but have not endured. (Wiktionary)