a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
CAN YOU FEEL THE WEAL WITH THIS WORD OF THE DAY QUIZ?
Did you collect all of last week’s words, but eftsoons forget what they mean? Don’t worry, we’re here to jog your memory. See how many words from the week of May 18 to 24 you can get right!
Question 1 of 7
Origin of molecular sieve
First recorded in 1925–30
Words nearby molecular sieve
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for molecular sieve
chem a material that can absorb large amounts of certain compounds while not absorbing others and is thus suitable for use in separating mixtures
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