heptahydrate

[ hep-tuh-hahy-dreyt ]

noun

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

Other Words From

• hepta·hydrat·ed adjective

Word History and Origins

Origin of heptahydrate¹

First recorded in 1870–75; hepta- + hydrate

Example Sentences

Following this there will be deposition of the heptahydrate (point 3), with subsequent disappearance of the liquid phase.

From Project Gutenberg

With regard to sodium sulphate heptahydrate the same considerations will hold as in the case of the decahydrate.

From Project Gutenberg