initiator

noun
ini·​ti·​a·​tor | \ in-ˈish-ē-ˌāt-ər \

Medical Definition of initiator

: one that initiates: as
a : a substance that initiates a chemical reaction
b : a substance that produces an irreversible change in bodily tissue causing it to respond to other substances which promote the growth of tumors

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Dictionary Entries near initiator

iniencephaly

inion

initiation codon

initiator

inj

inject

injectable

More from Merriam-Webster on initiator

Thesaurus: All synonyms and antonyms for initiator

Britannica English: Translation of initiator for Arabic Speakers

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