tridymite
(noun) a mineral form of silica
Source: WordNet® 3.1
The name refers to the peculiar habit of crystallizing in groups of three individuals.
tridymite (countable and uncountable, plural tridymites)
(mineral) A rare mineral of volcanic rocks that solidified at a high temperature, with the chemical composition silicon dioxide, SiO2. Tridymite is chemically identical to quartz, but has a different crystal structure. Sometimes contains sodium aluminum silicate, which seems to be expelled when quartz solidifies at lower temperatures.
Source: Wiktionary
Trid"y*mite, n. Etym: [Gr. (Min.)
Definition: Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.
Source: Webster’s Unabridged Dictionary 1913 Edition
4 April 2025
(verb) kill by cutting the head off with a guillotine; “The French guillotined many Vietnamese while they occupied the country”
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.
