ferrule /ferˈool, -əl/

1. A metal band, ring or cap on the tip of a stick, etc for reinforcing it
2. A threaded cylindrical fitting for joining two pipes or rods

• anadems
• anadiploses
• anadiplosis
• anadromous
• anadyomene
• anaemia
• anaemias
• anaemic
• anaemically
• anaerobe
• anaerobes
• anaerobic
• anaerobically
• anaerobiont
• anaerobioses
• anaerobiosis
• anaerobiotic
• anaerobiotically
• anaesthesia
• anaesthesias
• anaesthesiologist
• anaesthesiologists
• anaesthesiology
• anaesthesis
• anaesthetic