pachyderm

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pach·y·derm / ˈpakəˌdərm/ • n. a very large mammal with thick skin, esp. an elephant, rhinoceros, or hippopotamus.DERIVATIVES: pach·y·der·mal / ˌpakəˈdərməl/ adj.pach·y·der·ma·tous / ˌpakəˈdərmətəs/ adj.pach·y·der·mic / ˌpakəˈdərmik/ adj.ORIGIN: mid 19th cent.: from French pachyderme, from Greek pakhudermos, from pakhus ‘thick’ + derma ‘skin.’

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