13-Letter Words Containing: O,R,K,I,E,S,T

• an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals

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

• the activity of making things out of metal in a skillful manner

• the sport of skating on a skateboard

• exhibiting or calling for sportsmanship or fair play