1. A B vitamin essential for the normal function of the nervous system and the gastrointestinal tract
   - niacin

Derived forms: nicotinic acids

Type of: B, B complex, B vitamin, B-complex vitamin, vitamin B, vitamin B complex

Encyclopedia: Nicotinic acid

• buoy up
• buoyancy
• buoyant
• buoyantly
• Buphthalmum
• Buphthalmum salicifolium
• bur
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• bur oak
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• bur-reed family
• Bura
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• botched
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• both