Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry A
tabular chart of thechemical elements according to theiratomic numbers so that elements withsimilar properties are in the samecolumn .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (chemistry) a tabular arrangement of the chemical elements according to atomic number as based on the periodic law
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