1. Either of two communicating veins serving the brain
   - anastomotic vein

Type of: vein, vena, venous blood vessel

• Onoclea struthiopteris
• onomancer
• onomancy
• onomastic
• onomasticon
• onomastics
• onomatomania
• onomatopoeia
• onomatopoeic
• onomatopoeical
• onomatopoetic
• Onondaga
• Ononis
• Ononis repens
• Ononis spinosa
• Onopordon
• Onopordon acanthium
• Onopordum
• Onopordum acanthium
• Onosmodium
• onrush
• Onsager
• onset
• onshore
• onside