- a type of heat-resistant glass made from fused quartz
WordReference Random House Unabridged Dictionary of American English © 2026
si•lex
(sī′leks),USA pronunciation n.
- Mineralogyflint;
silica.
- Latin silex, stem silic- hard stone, flint, boulder
- 1585–95
Collins Concise English Dictionary © HarperCollins Publishers::
silex /ˈsaɪlɛks/ n
'silex' also found in these entries (note: many are not synonyms or translations):