'Requester' definitions:

Definition of 'requester'

From: WordNet
noun
One praying humbly for something; "a suppliant for her favors" [syn: petitioner, suppliant, supplicant, requester]

Definition of 'Requester'

From: GCIDE
  • Requester \Re*quest"er\ (-?r), n. One who requests; a petitioner. [1913 Webster]