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molecules
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Word definitions for molecules in dictionaries
Wikipedia
Word definitions in Wikipedia
Molecules is a peer-reviewed open access scientific journal that focuses on all aspects of synthetic organic chemistry and natural product chemistry . It was established in March 1996 and is published monthly by MDPI . The editor-in-chief is Derek J. McPhee ...
Wiktionary
Word definitions in Wiktionary
n. (plural of molecule English)
Usage examples of molecules.
It is perhaps telling that one of the most important observations of the century, Brownian motion, which established the active nature of molecules, was made not by a chemist but by a Scottish botanist, Robert Brown.
Chemists tend to think in terms of molecules rather than elements in much the way that writers tend to think in terms of words and not letters, so it is molecules they count, and these are numerous to say the least.
Because trillions of molecules are constantly colliding, a lot of heat gets exchanged.
But at the height of the thermosphere, at fifty miles or more, the air is so thin that any two molecules will be miles apart and hardly ever come in contact.
The answer again takes us back to the question of the density of molecules in the atmosphere.
The higher you climb, the fewer molecules there are, and so the fewer collisions between them.
Low-pressure systems are created by rising air, which conveys water molecules into the sky, forming clouds and eventually rain.
When you look at a lake, you are looking at a collection of molecules that have been there on average for about a decade.
Altogether about 60 percent of water molecules in a rainfall are returned to the atmosphere within a day or two.
In the presence of certain organic molecules it can form carbonic acids so nasty that they can strip the leaves from trees and eat the faces off statuary.
The molecules at the surface are attracted more powerfully to the like molecules beneath and beside them than to the air molecules above.
From every cell, water molecules rush off like so many volunteer firemen to try to dilute and carry off the sudden intake of salt.
Lots of molecules in nature get together to form long chains called polymers.
They absorbed water molecules, supped on the hydrogen, and released the oxygen as waste, and in so doing invented photosynthesis.
Like greatly speeded up worker ants, they busily build and rebuild molecules, hauling a piece off this one, adding a piece to that one.