Look up initiator in Wiktionary, the free dictionary.
An initiator can refer to:
- A person who instigates something.
- Modulated neutron initiator, a neutron source used in some nuclear weapons
- Initiator, an Explosive booster
- Initiator, the first Nuclear chain reaction
- Pyrotechnic initiator, a device containing a pyrotechnic composition used primarily to ignite other, more difficult to ignite materials
- Radical initiator, chemical substances that can produce radical species under mild conditions
- Photoinitiator, chemical substances that produce radical specials upon exposure to light
- SCSI initiator, the host-side endpoint of a SCSI session
- Monomeric polyols, such as glycerin, pentaerythritol, ethylene glycol and sucrose, serving as the starting point for polymeric polyols
