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selenite

American  
[sel-uh-nahyt, si-lee-nahyt] / ˈsɛl əˌnaɪt, sɪˈli naɪt /

noun

  1. Mineralogy. a variety of gypsum, found in transparent crystals and foliated masses.

  2. Chemistry. a salt of selenious acid.


selenite British  
/ ˈsɛlɪˌnaɪt /

noun

  1. a colourless glassy variety of gypsum

"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

Other Word Forms

  • selenitic adjective
  • selenitical adjective

Etymology

Origin of selenite

1560–70; < Latin selēnītēs < Greek selēnī́tēs líthos moonstone; see Selene, -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The 29-year-old, who wore selenite crystal around her neck to “repel bad energy,” was second to last in line.

From Los Angeles Times • Aug. 8, 2022

When the researchers injected sodium selenite directly into the mice’s brains for 7 days, the number of neural precursor cells in the hippocampus tripled, they report in Cell Metabolism.

From Science Magazine • Feb. 3, 2022

In one corner, three forearm-size selenite wands were balanced like firewood.

From New York Times • May 5, 2021

Other items laid out on it include a labradorite crystal for mind-clearing and enhanced intuition, and a wand made of selenite for its protective quality.

From Washington Post

By degrees the cloud became of whitish blue, and for a time the selenite colours, obtained by looking at it normally, were exceedingly brilliant.

From Fragments of science, V. 1-2 by Tyndall, John