n.
Pronunciation: ' h ō l-st ə r
Function: noun
Etymology: Dutch; akin to Old English heolstor cover, helan to conceal ― more at HELL
Date: 1663
: a leather or fabric case for carrying a firearm on the person (as on the hip or chest), on a saddle, or in a vehicle broadly : a case for carrying a usually small item on the person <a knife holster > <a heart monitor carried in a hip holster >