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1 definition by Mr. McCall

 
1.
October 23. A "holiday" made for avid chemistry fans, big and small due to the fact that Avagadros Number (6.02*10^23) is very important in that field. Mole day is celebrated on Oct 23 because of the 10^23.
Dude, its Mole day....party at the lab all night long!!! w00t
by Mr. McCall March 15, 2007