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Definition of initiator

initiator

/ɪˈnɪʃ.i.eɪ.tɚ/
in · i · ti · a · tor

Plural:initiators
•
Adjective:initiatory
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initiator Lexical Profile

initiator Game Scores & Validity

• noun

1

A person, organization, or thing that starts, originates, or sets in motion an action, process, or enterprise.

Example

"She was widely recognized as the primary initiator of the community recycling program."


2

A substance or chemical agent introduced to start a chemical reaction, particularly a chain reaction such as polymerization.

Example

"The lab technician added a small amount of peroxide as an initiator to trigger the polymerization of the resin."


3

A hardware device or software component in a computer network or storage system that originates a command, session, or data transfer request to a target device.

Example

"In the storage area network, the host server acts as the initiator when requesting data blocks from the disk array."

Synonyms
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Antonyms
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• Rhymes for initiator

Word Origin & Etymology

Borrowed from Late Latin initiator ('one who initiates or introduces into mysteries'), an agent noun derived from the verb initiare ('to begin, originate, or consecrate'), from initium ('a beginning or entrance').

Cite this Entry


Wordmom. (2026). Definition of Initiator. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/initiator
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