bollard

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a strong post (as on a wharf or quay or ship for attaching mooring lines)
- the road was closed to vehicular traffic with bollards
• Syn:
bitt
• Derivationally related forms:
bitt (for: bitt)
• Topics:
ship
• Hypernyms:
post
• Hyponyms:
riding bitt
• Part Holonyms:
pier, wharf, wharfage, dock
• Part Meronyms:
bitthead