10-Letter Words Containing: O,P,E,E,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 person employed at a zoo to attend to the animals.

• plant adapted for life with a limited supply of water; compare hydrophyte and mesophyte

• 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.