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Kolff

[kohlf, kolf]
noun
  1. Wil·lem J(o·han) [wil-uh m yoh-hahn, -han] /ˈwɪl əm ˈyoʊ hɑn, -hæn/, 1911–2010, U.S. physician and inventor, born in the Netherlands: developed the artificial kidney machine.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018