Definition of Pachy- (prefix)
Pachy- (prefix): Thick. As in pachydactyly (thick fingers), pachydermatous (thick fingers) and pachyonychia (thick nails). From the Greek pachys, thick.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=20449
Last Editorial Review: 6/14/2012
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