silex Meaning, Definition & Usage

  1. noun a pure form of finely ground silica
  2. noun a vacuum coffee maker

WordNet

Si"lex noun
Etymology
L., a finit, a pebblestone.
Definitions
  1. (Min.) Silica, SiO2 as found in nature, constituting quarz, and most sands and sandstones. See Silica, and Silicic.

Webster 1913