| 单词 | penetrant |
| 释义 | penetrant /pen"i treuhnt/, n. 1. a person or thing that penetrates. 2. a compound that penetrates the skin, as a lotion or cream. 3. a substance that lowers the surface tension of water; wetting agent. 4. Zool. a large nematocyst discharging a barbed thread that penetrates the body of the prey and injects a toxic fluid. adj. 5. penetrating. [1535-45; < L penetrant- (s. of penetrans), prp. of penetrare to PENETRATE; see -ANT] |
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