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IGNEOUS ROCK
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Rock formed by the solidification of molten magma
Classified under:
Hypernyms ("igneous rock" is a kind of...):
rock; stone (material consisting of the aggregate of minerals like those making up the Earth's crust)
Meronyms (substance of "igneous rock"):
sodalite (a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks)
Hyponyms (each of the following is a kind of "igneous rock"):
andesite (a dark grey volcanic rock)
aplite (light-colored and fine-grained granitic rock consisting chiefly of quartz and feldspars)
groundmass ((geology) the matrix of fine-grained crystalline material in which larger crystals are embedded)
adesite (dark greyish extrusive rock)
batholite; batholith; pluton; plutonic rock (large mass of intrusive igneous rock believed to have solidified deep within the earth)
diorite (a granular crystalline intrusive rock)
gabbro (one of a family of granular intrusive rocks)
pegmatite (a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements)
peridotite (a dark coarse-grained igneous rock consisting principally of olivine)
rhyolite (very acid volcanic rock)
volcanic rock (extrusive igneous rock solidified near or on the surface of the Earth)
porphyritic rock; porphyry (any igneous rock with crystals embedded in a finer groundmass of minerals)
