n.
A very strong, high-grade cotton of medium staple developed from selected Egyptian cottons in the southwest United States.
[After Pima County in southern Arizona, location of the experimental farm on which it was developed in the early 1900s.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
