from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless or white crystalline compound, NaCl, used in the manufacture of chemicals and as a food preservative and seasoning.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Chemical term for common table salt, a compound composed of equal number of sodium and chlorine atoms. Chemical formula NaCl.
from the GNU version of the Collaborative International Dictionary of English
- n. common, or table, salt, NaCl.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a white crystalline solid consisting mainly of sodium chloride (NaCl)
Sorry, no etymologies found.
That parallel is not as tenuous as it sounds: Sodium fluoride is used to strengthen teeth, sodium chloride is table salt, and chlorine is a poisonous gas that was used by Germany in World War I.