English Explanatory Dictionary

initiator

English dictionary entry

Meanings

noun
  1. One who initiates.
  2. A substance that initiates a chain reaction or polymerization.
  3. A component of a nuclear weapon that produces a burst of neutrons to start the chain reaction.
  4. A task (in a mainframe computer) that initiates multiple jobs.
  5. A material whose presence in the body eventually leads to cancer.

Word forms

initiator initiators

Etymology

Borrowed from Latin initiātor. By surface analysis, initiate + or.

Derived words

coinitiator macroinitiator photoinitiator preinitiator pyrotechnic initiator reinitiator thermoinitiator
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