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equimolecular

American  
[ee-kwuh-muh-lek-yuh-ler, ek-wuh-] / ˌi kwə məˈlɛk yə lər, ˈɛk wə- /

adjective

Physics, Chemistry.
  1. containing equal numbers of molecules.


equimolecular British  
/ ˌiːkwɪməˈlɛkjʊlə /

adjective

  1. (of substances, solutions, etc) containing equal numbers of molecules

"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 equimolecular

First recorded in 1905–10; equi- + molecular