Definition of "requester" [re•quest•er]

• One who or that which requests; a requestor. (noun)

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• "If the requester is a print/broadcast journalist, are they able to provide some information about their assignment (that would explain why they’re asking for a backlist title)?"
• "I wonder if the requester is my sis, who works full time; while my brother-in-law sits home on the computer on his ever widening ass playing WoW."
• "Such a system is robust and secure, but it's also not very user-friendly, because browsers throw a big username/password requester on the screen before the site loads."