| 单词 | para-dichlorobenzene |
| 释义 | para-dichlorobenzene /par'euh duy klawr'euh ben"zeen, -ben zeen", -klohr'-/, n. Chem. a white, crystalline, volatile, water-insoluble solid, C6H4Cl2, of the benzene series, having a penetrating odor: used chiefly as a moth repellent. Also, paradichlorobenzene. Also called PDB, para. Cf. dichlorobenzene. [1875-80; PARA-1 + DI-1 + CHLORO-2 + BENZENE] |
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