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Webster 1913 Edition

Petrosilex

Petˊro-si′lex

,

Noun.

[

Petro

+

silex

.]

(Min.)

Felsite.

Webster 1828 Edition

Petrosilex

PET'ROSILEX

,

Noun.

[L. petra, Gr. a stone, and silex, flint.]

Rock stone; rock flint, or compact feldspar.

Definition 2024

petrosilex

petrosilex

English

Noun

petrosilex ‎(plural petrosilexes)

(mineralogy) felsite