D defs.my
Entry 1 sense Webster, 1913

Vulcan powder

· Vul·can pow·der · IPA
01 A dynamite composed of nitroglycerin (30 parts), sodium nitrate (52.5), charcoal (10.5), and sulphur (7), used in mining and blasting.
  1. 1.
    A dynamite composed of nitroglycerin (30 parts), sodium nitrate (52.5), charcoal (10.5), and sulphur (7), used in mining and blasting.