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)

• cribbed
• cribber
• cribbers
• cribbing
• crib-biting
• cribble
• cribbled
• cribbles
• cribbling
• crib death
• crib deaths
• cribella
• cribellar
• cribellum
• criblé
• cribrate
• cribration
• cribrations
• cribriform
• cribrose
• cribrous
• cribs
• cribwork
• cricetid
• Cricetidae