14-Letter Words with D,G,H,I,N,O,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

• a chemical process that adds hydrogen atoms to an unsaturated oil

• undergarment worn next to the skin and under the outer garments

• A pattern of animal colouration, existing as a form of camouflage, characterised by darker pigmentation of the upper side and lighter of the underside.

• hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity

• a private house that provides accommodations and meals for paying guests