Definition of "decad" [dec•ad]

• Archaic form of decade. (noun)

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• "Corrections made to printed original. page 300, "The duad represented the line" - original reads 'decad', making no sense in view of what follows."
• "The allocation section of the Waxman Markey bill, also called the American Clean Energy and Security Act (ACES), aims to distribute permits representing our national greenhouse gas emissions for decad ..."
• "American passenger trains have lagged behind those in Europe and Asia for decad ..."