9-Letter Words Containing: N,E,P,E

• 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

• make into or use as a weapon or a potential weapon

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

• an instrumentality needed for an undertaking or to perform a service

• a large rigid dirigible designed to carry passengers or bombs

• German inventor who designed and built the first rigid motorized dirigible (1838-1917)