15-Letter Words Containing: I,I,K,O

• a gastrointestinal hormone that stimulates the secretion of pancreatic enzymes and the contraction and emptying of the gall bladder; its release is stimulated by the presence of fatty acids and amino acids in the small intestine

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

• Infection by the hookworm Ancylostoma.

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