Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Craton" Definition
noun
A large portion of a continental plate that has been relatively undisturbed since the Precambrian era and includes both shield and platform layers.
Source: American Heritage Dictionary
A stable relatively immobile area of the earth's crust that forms the nuclear mass of a continent or the central basin of an ocean.
Source: Merriam-Webster