antitranspirant

noun

an·​ti·​tran·​spi·​rant

" +

plural -s

: a substance (such as pine oil) that is usually sprayed on plant surfaces (as of the leaves and stems) to reduce transpiration and inhibit water loss

called also antidesiccant

Word History

Etymology

anti- entry 1 + transpir(ation) + -ant entry 1

First Known Use

1958, in the meaning defined above

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