13-Letter Words Containing: H,D,A,Y

• (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids

• To introduce a hydroxyl group into a compound

• accumulation of fluid in the pleural cavity (the space between the lungs and the walls of the chest) often resulting from disease of the heart or kidneys

• a patient with imaginary symptoms and ailments

• suffering from hypochondria

• relating to or characterized by or evidencing hydrocephalus

• 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