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Definition of Peri-

Peri-: Prefix meaning around or about. For example, pericardial is around the heart, and periaortic lymph nodes are lymph nodes around the aorta.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=11876
Last Editorial Review: 11/30/1999 8:49:00 PM

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