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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!