14-Letter Words Containing: _,A,I,K,O,R,S,T

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

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

• the act of passengers and crew getting off of a ship or aircraft

• the sport of skating on a skateboard

• an enzyme produced by some strains of streptococcus that can liquefy blood clots by converting plasminogen to plasmin; used medicinally in some cases of myocardial infarction and pulmonary embolism

• a surgical procedure in which part or all of a damaged or diseased cornea is replaced by healthy corneal tissue from a donor