1. 1. A member of the Nazi militia noted for brutality and violence.
   2. One who resembles or behaves like a member of the Nazi militia.
2. A member of a force of shock troops.

[From storm troops, translation of German Sturmtruppen : Sturm(abteilung), Storm (Division) + Truppen, troops.]

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.