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Definition of Poly-

Poly-: 1: Prefix meaning much or many. For example, polycystic means characterized by many cysts. 2: Short form for polymorphonuclear leukocyte, a type of white blood cell.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=4977
Last Editorial Review: 10/30/2013

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