initiator

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in·i·ti·ate

 (ĭ-nĭsh′ē-āt′)
tr.v. in·i·ti·at·ed, in·i·ti·at·ing, in·i·ti·ates
1. To set going by taking the first step; begin: initiated trade with developing nations. See Synonyms at begin.
2. To introduce to a new field, interest, skill, or activity: initiated the students into the world of opera.
3. To admit (someone) into membership, as with a ritual or ceremony.
adj. (-ĭt)
1. Initiated or admitted, as to membership or a position of authority.
2. Introduced to something new, such as a new field of knowledge.
n. (-ĭt)
1. One who is being or has been initiated into an organization.
2. One who has been introduced to or has attained some knowledge in a particular field.

[Latin initiāre, initiāt-, from initium, beginning; see ei- in Indo-European roots.]

in·i′ti·a′tor n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

initiator

(ɪˈnɪʃɪˌeɪtə)
n
1. a person or thing that initiates
2. (Chemistry) chem a substance that starts a chain reaction
3. (Chemistry) chem an explosive used in detonators
inˈitiˌatress, inˈitiˌatrix fem n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.initiator - a person who initiates a course of action
leader - a person who rules or guides or inspires others
aggressor - a confident assertive person who acts as instigator
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

initiator

[ɪˈnɪʃɪeɪtəʳ] Niniciador(a) m/f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

initiator

[ɪˈnɪʃieɪtər] n [plan, process] → initiateur/trice m/f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

initiator

nInitiator(in) m(f)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

initiator

[ɪˈnɪʃɪˌeɪtəʳ] npromotore/trice
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
Fact.MR has announced the addition of the "Photoinitiator Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2027"report to their offering.
Summary: Fact.MR has announced the addition of the " Photoinitiator Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2027"report to their offering.
European regulators, led by the Helsinki-based European Chemicals Agency (ECHA) responsible for administering the European Union's chemicals legislation, have been raising concerns about the health and environmental dangers of certain photoinitiators. This has put pressure on ink producers to develop UV formulators which have a low photoinitiator content or none at all without weakening the performance of the products.
The UV Cationic series has excellent cure response to UV C wavelength due to the incorporation of Elkem Silicones patented photoinitiator tcchnology.
Photopolymerization starts with exposure to a light source, the operation wavelength of which depends on the photoinitiator added.
The gel precursor solution was degassed for 30 min at which point the photoinitiator, Irgacure 2959 for UV-crosslinked gels, was added to the solution at 0.1% w/v final concentration and mixed gently.
Five water-soluble acrylamide monomers and a photoinitiator have been introduced by the company.
More recently, we reported the effect of photoinitiator concentration on EO properties of Iniferter-PS dependent PDLCs [13].
Previous studies have shown that photoinitiator concentration can affect the polymerisation rate of hydrogels.
It undergoes polymerization in the presence of a photoinitiator during the setting process on bonding to the teeth [6].
and Weiss formed hydrophilic foams by filling a hydrophobic plastic foam with acrylic monomers attached to extra free-radical polymerizable groups, a photoinitiator and hydrophilic monomers.