Initiator

An initiator can refer to

• a device used to start the chain reaction in an atomic bomb of the Fat Man type.
• a chemical compound that initiates a chemical chain reaction. Usually, it forms a free radical—an atom or molecule with at least one unpaired electron, or a group of atoms, charged or uncharged, that act as a single entity in reaction. (see radical (chemistry)).
• a pyrotechnic initiator
• a SCSI initiator.

Additional recommended knowledge

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See also: explosive booster.