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adsorbate

American  
[ad-sawr-beyt, -bit, -zawr-] / ædˈsɔr beɪt, -bɪt, -ˈzɔr- /

noun

  1. a substance that is adsorbed.


adsorbate British  
/ ədˈsɔːbeɪt, -ˈzɔː-, -bɪt /

noun

  1. a substance that has been or is to be adsorbed on a surface

"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

Etymology

Origin of adsorbate

First recorded in 1925–30; adsorb + -ate 1