from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chemistry A tabular arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same column.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (chemistry) a tabular arrangement of the chemical elements according to atomic number as based on the periodic law
Sorry, no etymologies found.
Alas, the popular legend: The legend that the periodic table came to Mendeleev in a dream is discussed in G. W. Baylor, ‘What do we really know about Mendeleev’s dream of the periodic table?
Mendeleev predicted that the blanks in his periodic table would be filled with elements of certain atomic weights and properties.
But it was that fire that made his mother move to St. Petersburg, where Mendeleev was able to study with Bunsen and, eventually, come up with the periodic table of the elements.