1. Tall evergreen of western North America; commercially important timber tree
   - western hemlock, west coast hemlock, Tsuga heterophylla

Type of: hemlock, hemlock tree

• tricot
• tricuspid
• tricuspid valve
• tricuspidate
• tricycle
• tricyclic
• tricyclic antidepressant
• tricyclic antidepressant drug
• Tridacna
• Tridacna gigas
• Tridacnidae
• trident
• Tridentine
• tridymite
• tried
• tried and true
• triennial
• triennially
• triennium
• trier
• trifecta
• trifid
• trifid beggar-ticks
• trifid bur marigold
• trifle