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penetrant

[pen-i-truh nt] /ˈpɛn ɪ trənt/
noun
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.
Zoology. a large nematocyst discharging a barbed thread that penetrates the body of the prey and injects a toxic fluid.
adjective
Origin
1535-1545
1535-45; < Latin penetrant- (stem of penetrāns), present participle of penetrāre to penetrate; see -ant
Related forms
unpenetrant, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un penetrant

penetrant

/ˈpɛnɪtrənt/
adjective
1.
sharp; penetrating
noun
2.
(chem) a substance that lowers the surface tension of a liquid and thus causes it to penetrate or be absorbed more easily
3.
a person or thing that penetrates
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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