Pluton.冥王星plutocraticaladj.富豪政治的；财阀政治的plutodemocracyn.金权民主主义plutonic water深成水plutonic theoryn.〈地〉火成论plutonyl nitrate硝酸钚酰plutonic breccia深成角砾石plutonyl compound钚酰化合物plutonic activity深成活切plutonic rocks.火成岩plutonyl hydroxide氢氧化钚酰