condensation nucleus

condensation nucleus

noun Meteorology.
nucleus (def. 5).

Origin:
1910–15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Condensation nucleus is always a great word to know.
So is polar front. Does it mean:
a cyclone that forms on a front and, in maturing, produces an increasingly sharp, wavelike deformation of the front
the variable frontal zone of middle latitudes separating air masses of polar and tropical origin
Dictionary.com's 21st Century Lexicon
Main Entry:  condensation nucleus
Part of Speech:  n
Definition:  any tiny suspended particle in the atmosphere, either liquid or solid, upon which condensation of water vapor begins
Example:  Most condensation nuclei are produced by natural and man-made fires over land and by wave action over the oceans.
Usage:  science
Dictionary.com's 21st Century Lexicon
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