Initiator

[verb ih-nish-ee-eyt; adjective, noun ih-nish-ee-it, -eyt] /verb ɪˈnɪʃ iˌeɪt; adjective, noun ɪˈnɪʃ i ɪt, -ˌeɪt/

verb (used with object), initiated, initiating.
1.
to begin, set going, or originate:
to initiate major social reforms.
2.
to introduce into the knowledge of some art or subject.
3.
to admit or accept with formal rites into an organization or group, secret knowledge, adult society, etc.
4.
to propose (a measure) by procedure:
to initiate a constitutional amendment.
adjective
5.
initiated; begun.
6.
admitted into an organizaton or group, secret knowledge, etc.
7.
introduced to the knowledge of a subject.
noun
8.
a person who has been initiated.
/ɪˈnɪʃɪˌeɪtə/
noun
1.
a person or thing that initiates
2.
(chem) a substance that starts a chain reaction
3.
(chem) an explosive used in detonators
verb (transitive) (ɪˈnɪʃɪˌeɪt)
1.
to begin or originate
2.
to accept (new members) into an organization such as a club, through often secret ceremonies
3.
to teach fundamentals to: she initiated him into the ballet
adjective (ɪˈnɪʃɪɪt; -ˌeɪt)
4.
initiated; begun
noun (ɪˈnɪʃɪɪt; -ˌeɪt)
5.
a person who has been initiated, esp recently
6.
a beginner; novice
n.

“one who has been initiated,” 1811, from past participle adjective initiate (c.1600); see initiate (v.).
v.

c.1600, “introduce to some practice or system,” also “begin, set going,” from Latin initiatus, past participle of initiare “to begin, originate,” from initium “beginning” (see initial). In some senses a back-formation from initiation. Related: Initiated; initiates; initiating; initiator.

SCSI initiator