n., pl., U·zis, or U·ZIs.
Any of various compact submachine guns having a caliber of 9 millimeters, originally designed in Israel in the 1950s.
[After Uzi el-Gal, 20th-century Israeli army officer and weapons designer.]
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.