14-Letter Words Containing: I,K,O,S

• 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

• literally, the contemplation of one's navel, which is an idiom usually meaning complacent self-absorption

• Excess keratin formation on the skin surface, as can be seen in a number of dermatologic conditions.

• a victim of ridicule or pranks

• an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot