cofactor /kō-fakˈtər/

1. A factor which occurs along with other factors in multiplication
2. A nonprotein organic molecule or a metallic ion that binds with an enzyme and is essential to the enzyme's activity (biology)

• native companion
• native land
• native lands
• native language
• native languages
• natively
• nativeness
• nativenesses
• native rock
• natives
• native speaker
• native speakers
• native title
• nativism
• nativisms
• nativist
• nativistic
• nativists
• nativities
• nativity
• nativity play
• nativity plays
• NATO
• Nato
• natrium