Hypertext Webster Gateway: "silex"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Silex \Si"lex\, n. [L., a finit, a pebblestone.] (Min.)
Silica, {SiO2} as found in nature, constituting quarz, and
most sands and sandstones. See {Silica}, and {Silicic}.
From WordNet (r) 1.7 (wn)
silex
n 1: a pure form of finely ground silica
2: (trademark) a vacuum coffee maker [syn: {Silex}]
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