Pronunciation: (gren"u-dēr'), [key]
1. (in the British army) a member of the first regiment of household infantry (Gren'adier Guards').
2. (formerly) a specially selected foot soldier in certain elite units.
3. (formerly) a soldier who threw grenades.
4. Also called rat-tail, rat tail. any of several deep-sea fishes of the family Macrouridae, having an elongated, tapering tail.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.