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)

• burettes
• bantams
• bantamweight
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• banted
• banteng
• bantengs
• banter
• bantered
• banterer
• banterers
• bantering
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• banterings
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• banting
• bantingism
• bantingisms
• bantings
• bantling
• bantlings
• bants
• Bantu
• Bantus
• Bantustan