: an adsorbed substance

Word History

Etymology

adsorb + -ate entry 1

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of adsorbate was in 1914

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Cite this Entry

“Adsorbate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adsorbate. Accessed 10 Jul. 2026.

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