thenardite: Meaning and Definition of

the•nard•ite

Pronunciation: (thu-när'dīt, tu-), [key]
— n.
  1. a mineral, sodium sulfate, NaSO, occurring in white crystals and masses, esp. in salt lakes and arid regions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.