hemihydrate

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hem·i·hy·drate

 (hĕm′ĭ-hī′drāt′)
n.
A hydrate in which the molecular ratio of water molecules to anhydrous compound is 1:2.

hem′i·hy′drat′ed adj.

hemihydrate

(ˌhɛmɪˈhaɪdreɪt)
n
(Chemistry) chem a hydrate in which there are two molecules of substance to every molecule of water
ˌhemiˈhydrated adj

hem•i•hy•drate

(ˌhɛm ɪˈhaɪ dreɪt)

n.
a hydrate in which there are two molecules of the compound for each molecule of water.
[1905–10]
References in periodicals archive ?
Fars, "Analysis and Optimization of Using Hemihydrates Plaster ([beta]) for Casting Mould in Sanitary ware Industry," Ceram.
Calcium sulphate hemihydrates (gypsum) is an ionic solid and is therefore essentially hydrophilic.23
In 2008, for instance, the Indian Patent Office rejected a patent application for Viramune Suspension (nevirapine hemihydrates), a syrup form of Viramune (nevirapine), which is important for children living with HIV who are unable to swallow tablets, as a "new form" of a "known substance".