periodic law

[peer-ee-od-ik, peer-]
noun Chemistry.
1.
the law that the properties of the elements are periodic functions of their atomic numbers.
2.
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.

Origin:
1870–75

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To Periodic law
Collins
World English Dictionary
periodic law (ˌpɪərɪˈɒdɪk)
 
n
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

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.
Cite This Source
Example sentences
However, the key to this periodic law as he called it, was that it made specific predictions.
Periodic law enforcement would ensure compliance with regulations and area closures.
Periodic law enforcement would be conducted by officers from other refuges.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature