10-Letter Words Containing: O,P,E,N,S

• any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active

• a protein that combines with a coenzyme to form an active enzyme

• a percussion instrument with wooden bars tuned to produce a chromatic scale and with resonators; played with small mallets

• To make into a weapon.

• To make more effective as a weapon.

• One who fears that which is unknown; one who fears people who are different from oneself, especially foreigners.

• an antipsychotic drug (trade name Clozaril) used as a sedative and for treatment-resistant schizophrenia; known to have few side effects