radioactive series

radioactive series

noun Physics, Chemistry.
a succession of elements initiated in the radioactive decay of a parent, as thorium or uranium, each of which decays into the next until a stable element, usually lead, is produced.
Also called decay series.


Origin:
1920–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Radioactive series is always a great word to know.
So is compressibility. Does it mean:
the reciprocal of the bulk modulus, equal to the ratio of the fractional change in volume to the stress applied to a body
the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force
Collins
World English Dictionary
radioactive series
 
n
physics uranium series neptunium series thorium series See actinium series a series of nuclides each of which undergoes radioactive decay into the next member of the series, ending with a stable element, usually lead

Collins English Dictionary - Complete & Unabridged 10th Edition
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