14-Letter Words Containing: A,K,O,N

• 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

• photosynthetic or plant constituent of plankton; mainly unicellular algae

• the state or quality of being recognized or acknowledged

• a short note recognizing a source of information or of a quoted passage

• a statement acknowledging something or someone

• organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)