phonolite

[ fohn-l-ahyt ]
/ ˈfoʊn lˌaɪt /

noun

a fine-grained volcanic rock composed chiefly of alkali feldspar and nepheline, some varieties of which split into pieces that ring on being struck.

Origin of phonolite

1820–30; < French < German Phonolith. See phono-, -lite

OTHER WORDS FROM phonolite

pho·no·lit·ic [fohn-l-it-ik] /ˌfoʊn lˈɪt ɪk/, adjective

Example sentences from the Web for phonolite

British Dictionary definitions for phonolite

phonolite
/ (ˈfəʊnəˌlaɪt) /

noun

a fine-grained volcanic igneous rock consisting of alkaline feldspars and nepheline

Derived forms of phonolite

phonolitic (ˌfəʊnəˈlɪtɪk), adjective

Word Origin for phonolite

C19: via French from German Phonolith; see phono-, -lite