火成 huǒchéng igneous Origin Definitions Defs Strokes Stroke Words Sentences Sents 火成岩 huǒchéngyán igneous rock Rock formed from the cooling and solidification of molten magma or lava; also called [[岩浆岩|岩漿岩|yan2 jiang1 yan2]]火成碎屑 huǒchéngsuìxiè pyroclastic pertaining to rock fragments produced by a volcanic eruption