molecular beam

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noun Physics.

a stream of molecules freed from a substance, usually a salt, by evaporation and then passed through a narrow slit for focusing, for investigating the properties of nuclei, atoms, and molecules.

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Also called molecular ray .

Words nearby molecular beam

Molech, mole crab, mole cricket, molecular, molecular astronomy, molecular beam, molecular biology, molecular clock, molecular cloud, molecular computing, molecular distillation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use molecular beam in a sentence

Back then, no one ever imagined needing to beam live video to ground troops from a fighter jet.
Newest U.S. Stealth Fighter ‘10 Years Behind’ Older Jets|Dave Majumdar|December 26, 2014|DAILY BEAST
Conservative columnist George Will calls him a “cherubic 40-year-old…a human beam of sunshine.”
With Ernst and Gardner, Republicans Think They’ve Found the Formula|Eleanor Clift|November 4, 2014|DAILY BEAST
“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
Her door stands ajar, halving the room with a beam of light.
After the Genocide, Rwanda’s Widows Aging Alone|Nina Strochlic|August 31, 2014|DAILY BEAST

Outside the lodge, running along its perimeter, was a small ditch lined by posts topped by a chest-high wooden beam.
Spirit Tripping With Colombian Shamans|Chris Allbritton|August 24, 2014|DAILY BEAST
The latter went immediately to look for his wife, and found her hidden in an attic, hanging to a beam.
The Philippine Islands, 1493-1898, Volume XX, 1621-1624|Various
Cast the beam from thine eye before noticing the mote in that of thy neighbour.
Solomon and Solomonic Literature|Moncure Daniel Conway
It was placed immediately over the shaft and pump-rods, requiring no engine-beam.
Life of Richard Trevithick, Volume II (of 2)|Francis Trevithick
A connecting rod worked a balance-beam, which worked the air-pump, feed-pump, and plug-rod for moving the valves.
Life of Richard Trevithick, Volume II (of 2)|Francis Trevithick
A large balance-beam was attached to the pump-rods, near the bottom cross-head.
Life of Richard Trevithick, Volume II (of 2)|Francis Trevithick

British Dictionary definitions for molecular beam

molecular beam

molecular ray

noun

physics a parallel beam of molecules that are at low pressure and suffer no interatomic or intermolecular collisions

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