impure

/im'pjuә/

BNC频率: 22807

现代语料频率: 23085

托福

a. 不纯的, 肮脏的, 掺杂的, 混合的

[医] 不纯的

v corrupt, debase, or make impure by adding a foreign or inferior substance

an impure form of quartz consisting of banded chalcedony

Impure limestone.

any of various naturally occurring impure mixtures of hydrocarbons

An impure aqueous solution of chloride of aluminium, used as an antiseptic and disinfectant.

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