tridymite
tri·dy·mite
noun
Origin
The name refers to the peculiar habit of crystallizing in groups of three individuals.
Related words
Broader terms
Part of
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.