Lexic.us

Definition of Tridymite

1. Noun. A mineral form of silica.

Definition of Tridymite

1. n. Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.

Medical Definition of Tridymite

1. Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks. Origin: Gr. Threefold. So called in allusion to the supposed threefold nature of the twin crystals. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Tridymite

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