Trihedral
adjective, Geometry.
1.
having, or formed by, three planes meeting in a point:
a trihedral angle.
noun
2.
a trihedron.
adjective
1.
having or formed by three plane faces meeting at a point
noun
2.
a figure formed by the intersection of three lines in different planes
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- Trihydrate
noun, Chemistry. 1. a hydrate that contains three molecules of water, as potassium pyrophosphate, K 4 P 2 O 7 ⋅3H 2 O. noun 1. (chem) a substance that contains three molecules of water
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adjective, Chemistry. 1. (especially of alcohols and phenols) trihydroxy. adjective 1. (of an alcohol or similar compound) containing three hydroxyl groups
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trihydric alcohol tri·hy·dric alcohol (trī-hī’drĭk) n. An alcohol containing three hydroxyl groups, such as glycerol.
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adjective, Chemistry. 1. containing three hydroxyl groups.