15-Letter Words Containing: T,R,O,A,K

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

• a genetic disorder of metabolism; lack of the enzyme needed to turn phenylalanine into tyrosine results in an accumulation of phenylalanine in the body fluids which causes various degrees of mental deficiency

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

• an attack by a defending force against an attacking enemy force in order to regain lost ground or cut off enemy advance units etc.

• (chess) an attack that is intended to counter the opponent's advantage in another part of the board

• make a counterattack

• violating accepted standards or rules