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serpentine

serpentine is defined in Webster's Unabridged Dictionary (1913) with 3 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(Min.) A mineral or rock consisting chiefly of the hydrous silicate of magnesia. It is usually of an obscure green color, often with a spotted or mottled appearance resembling a serpent's skin. Precious, or noble, serpentine is translucent and of a rich oil-green color. Note: Serpentine has been largely produced by the alteration of other minerals, especially of chrysolite.
  2. 2.(Ordnance) A kind of ancient cannon.
  3. 3.To serpentize. [R.] Lyttleton.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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