Dictionary.com
definitions

cotunnite

[kuh-tuhn-ahyt]
noun
  1. a soft, white to yellowish mineral, lead chloride, PbCl2, that forms as an alteration product of galena.

Origin of cotunnite

1825–35; < German Cotunnit, after Domenico Cotugno, in Latinized form Cotunnius (1736–1822), Italian anatomist; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018