Etymology

sesquihydrate

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Today it means: A hydrate whose solid contains three molecules of water of crystallization per two molecules. Full definition →

English hydrate ← French hydrate
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The story

  1. Englishsesqui-
  2. Frenchhydrate
  3. Englishhydrate
  4. English todaysesquihydrate

From sesqui- + hydrate.

Etymology from Wiktionary, CC BY-SA 4.0.