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heptahydrate

American  
[hep-tuh-hahy-dreyt] / ˌhɛp təˈhaɪ dreɪt /

noun

  1. a hydrate that contains seven molecules of water, as magnesium sulfate, MgSO 4 ⋅7H 2 O.

Other Word Forms

  • heptahydrated adjective

Etymology

Origin of heptahydrate

First recorded in 1870–75; hepta- + hydrate

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 solubility of the hexahydrate is greater than that of the heptahydrate below 39�, but increases more slowly with rise of temperature.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.