English dictionary
tridymite
/'tr/I/d/@/,m/aI/t/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
a mineral form of silica
Source: WordNet 3.0
-
Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.
Source: webster1913