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photodissociation

   Also found in: Medical, Wikipedia, Hutchinson 0.01 sec.
photodissociation [¦fōd·ō·di‚sō·shē′ā·shən]
(physical chemistry)
The removal of one or more atoms from a molecule by the absorption of a quantum of electromagnetic energy.


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The energized oxygen arises by photodissociation, a process whereby the sun's energy breaks up high-altitude ozone and other oxygenated molecules, Houston says.
They are also studying the use of laser excitation during molecular beam experiments to promote the removal of one or more specific atoms from larger molecules--a selective type of photodissociation.
 
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