14-Letter Words Containing: A,D,G,O,R,R

• the process whereby hydrocarbon molecules of petroleum are broken down into kerosene and gasolene by the addition of hydrogen under high pressure in the presence of a catalyst

• one having both male and female sexual characteristics and organs; at birth an unambiguous assignment of male or female cannot be made

• a graphical image of the heart produced by an echocardiograph

• the ceremonial breaking of the ground to formally begin a construction project

• being or producing something like nothing done or experienced or created before