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Mendeleev's law

noun, Chemistry
periodic law (def 2).

periodic law

[peer-ee-od-ik, peer-] /ˈpɪər iˈɒd ɪk, ˌpɪər-/
noun, Chemistry
the law that the properties of the elements are periodic functions of their atomic numbers.
Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for mendeleevs law

periodic law

Also called Mendeleev's law. the principle that the chemical properties of the elements are periodic functions of their atomic weights or, more accurately, of their atomic numbers
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
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mendeleevs law in Medicine

periodic law n.
The principle that properties of elements recur periodically as atomic numbers increase.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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