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plutonic 音標拼音: [plut'ɑnɪk] a. Pluto的;陰間的 Pluto的;陰間的 plutonic adj 1: of igneous rock that has solidified beneath the earth' s surface; granite or diorite or gabbro [ synonym: { irruptive}, { plutonic}] Plutonic \ Plu* ton" ic\, a. [ Cf. F. plutonique. See { Pluto}.] 1. Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean. [ 1913 Webster] 2. Of, pertaining to, or designating, the system of the Plutonists; igneous; as, the Plutonic theory. [ 1913 Webster] { Plutonic action} ( Geol.), the influence of volcanic heat and other subterranean forces under pressure. { Plutonic rocks} ( Geol.), granite, porphyry, and some other igneous rocks, supposed to have consolidated from a melted state at a great depth from the surface. Cf. { Intrusive rocks}, under { Intrusive}. { Plutonic theory}. ( Geol.) See { Plutonism}. [ 1913 Webster]
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