silex

(leks′)

noun

  1. silica, esp. in the form of flint or quartz
  2. heat-resistant glass made of fused quartz

Origin: L (gen. silicis), dissimulated < *scilec- < *scelic- < IE base *(s)kel-, to cut > shelf, shield

See silex in American Heritage Dictionary 4

noun
  1. Silica.
  2. Finely ground tripoli used as an inert paint filler.

Origin:

Origin: Latin, hard stone, flint

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