• synonyms


[sel-uh-nahyt, si-lee-nahyt]
  1. Mineralogy. a variety of gypsum, found in transparent crystals and foliated masses.
  2. Chemistry. a salt of selenious acid.
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Origin of selenite

1560–70; < Latin selēnītēs < Greek selēnī́tēs líthos moonstone; see Selene, -ite1
Related formssel·e·nit·ic [sel-uh-nit-ik] /ˌsɛl əˈnɪt ɪk/, sel·e·nit·i·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for selenite

Historical Examples of selenite

  • At a glance I had recognised the sparkling scales of the selenite.

    The Scalp Hunters

    Mayne Reid

  • The image of the film of selenite most beautifully coloured.

  • Large crystals of selenite (sulphate of lime) occur in the Marls.

  • Selenite, in all probability, was not used in pre-Spanish times.

    A Study of Pueblo Architecture: Tusayan and Cibola

    Victor Mindeleff and Cosmos Mindeleff

  • But suppose a Selenite to be six times smaller than a man like us!

British Dictionary definitions for selenite


  1. a colourless glassy variety of gypsum
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Word Origin for selenite

C17: via Latin from Greek selēnitēs lithos moonstone, from selēnē moon; so called because it was believed to wax and wane with the moon
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