trachyte

POS

Noun

TANDA HUBUNG

tra=chyte

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CIDE DICTIONARY

trachyte, n. [Gr. rough, rugged: cg. F. trachyte.].

An igneous rock, usually light gray in color and breaking with a rough surface. It consists chiefly of orthoclase feldspar with sometimes hornblende and mica. [1913 Webster]

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OXFORD DICTIONARY

trachyte, n. a light-coloured volcanic rock rough to the touch.

Derivative

trachytic adj.

Etymology

F f. Gk trakhutes roughness (as TRACHOMA)