Medical Definition of Pachyderma
Pachyderma: Thick skin, like that of a pachyderm (an elephant, rhinoceros, or hippopotamus). The adjective is pachydermatous. Pachyderma can occur in several medical conditions, such as chronic lymphedema.
From the Greek pachydermos meaning "thick skin" from pachys meaning "thick" + derma meaning "skin."Source: MedTerms™ Medical Dictionary
Last Editorial Review: 10/9/2012
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REFERENCE: Fauci, Anthony S., et al. Harrison's Principles of Internal Medicine. 17th ed. United States: McGraw-Hill Professional, 2008.