The apparatus that contains the sensitive explosive charge, which is more easily ignited and powerful enough to be used to set off the main explosive charge.
An electrically fired detonator for igniting dynamite or other devices. Also called a squib. I used the fulminated mercury variety.
(see detonators) – A metallic tube closed at one end, containing a charge of one or more detonating compounds, and designed to initiate detonation.