penetrant

[ pen-i-truhnt ]
/ ˈpɛn ɪ trənt /

noun

a person or thing that penetrates.
a compound that penetrates the skin, as a lotion or cream.
a substance that lowers the surface tension of water; wetting agent.
Zoology. a large nematocyst discharging a barbed thread that penetrates the body of the prey and injects a toxic fluid.

adjective

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Origin of penetrant

1535–45; <Latin penetrant- (stem of penetrāns), present participle of penetrāre to penetrate; see -ant

OTHER WORDS FROM penetrant

un·pen·e·trant, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for penetrant

British Dictionary definitions for penetrant

penetrant
/ (ˈpɛnɪtrənt) /

adjective

sharp; penetrating

noun

chem a substance that lowers the surface tension of a liquid and thus causes it to penetrate or be absorbed more easily
a person or thing that penetrates
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012