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

• (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

• 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

• study of fluids in motion

• chronic and abnormal anxiety about imaginary symptoms and ailments

• of or concerned with thermodynamics