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Definition of Acellular

Acellular: Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine which may contain cellular material but not complete cells.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=19026
Last Editorial Review: 11/15/2001 6:56:00 AM

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