molecular sieve

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noun Chemistry.

a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.

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Origin of molecular sieve

First recorded in 1925–30

Words nearby molecular sieve

molecular knife, molecular layer of cerebellar cortex, molecular medicine, molecular movement, molecular rotation, molecular sieve, molecular spectrum, molecular surgery, molecular volume, molecular weight, molecule

How to use molecular sieve in a sentence

“Not everyone can do molecular tests, whereas anyone can do a finger stick,” he says.
This New Ebola Test Is As Easy As a Pregnancy Test, So Why Aren’t We Using It?|Abby Haglage|October 3, 2014|DAILY BEAST
I was lunching with an old friend at one of our favorite farm-to-table molecular gastronomy food trucks in Larchmont proper.
Aubrey Plaza’s Great Disconnect|Aubrey Plaza|August 15, 2014|DAILY BEAST
Next to it, a car was perforated with bullet holes like a makeshift sieve.
Fleeing Israeli Troops, Gaza Muslims Find Refuge in a Christian Church|Jesse Rosenfeld|July 23, 2014|DAILY BEAST
He plans to build his artificial brain from entirely the bottom up, starting at the molecular level.
The Science Community’s Fight Over an Artificial Brain|Elizabeth Picciuto|July 10, 2014|DAILY BEAST

Cas9 are the molecular scissors that cut out what he does not like: the normal CCR5 that welcomes in HIV.
Gene Editing Could Erase HIV|Dr. Anand Veeravagu, MD, Michael Zhang|June 11, 2014|DAILY BEAST
"I remember seeing an old broken sieve around the ranch house somewhere," Grace suggested helpfully.
The Outdoor Girls in the Saddle|Laura Lee Hope
In his brain the ideas performed their evolutions with the rapidity of hollow straws around a sieve.
The Nabob|Alphonse Daudet
The molecular weight of alcohol in dilute aqueous solution is the same as in vapor form.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2.|Julius Stieglitz
The weights themselves give us directly their gram-molecular or molar weights.
The Elements of Qualitative Chemical Analysis, vol. 1, parts 1 and 2.|Julius Stieglitz
Do you know what clays it sinks through, as if they were a sieve, and what stops it like an iron door?
It Is Never Too Late to Mend|Charles Reade

British Dictionary definitions for molecular sieve

molecular sieve

noun

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