Dictionary.com
definitions

tiemannite

[tee-muh-nahyt]
noun
  1. a mineral, mercuric selenide, HgSe, occurring in the form of a compact mass of gray crystals.

Origin of tiemannite

< German Tiemannit (1855), after W. Tiemann, German scientist who found it; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for tiemannite

tiemannite

noun
  1. a grey mineral consisting of mercury selenide. Formula: HgSe

Word Origin for tiemannite

C19: named after J. C. W. F. Tiemann (1848–99), German scientist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012