D defs.my
Entry 1 sense Webster, 1913

Holster

/hōl'-stẽr/ · Hol·ster · IPA /ˈhɒlstə(ɹ)/
01 n. A leather case for a pistol, carried by a horseman at the bow of his saddle, or worn on the person suspended from a belt or shoulder strap.
  1. 1.
    A leather case for a pistol, carried by a horseman at the bow of his saddle, or worn on the person suspended from a belt or shoulder strap.