1. Involving three parties
   "trilateral talks" 
2. Having three sides
   "a trilateral figure"
   - triangular, three-sided

1. A three-sided polygon
   - triangle, trigon

Derived forms: trilaterals

See also: many-sided, multilateral, mutual, reciprocal

Type of: polygon, polygonal shape

• spinning
• spinning frame
• spinning jenny
• spinning machine
• spinning rod
• spinning top
• spinning wheel
• spinocerebellar disorder
• spinose
• spinous
• Spinoza
• spinster
• spinsterhood
• spinthariscope
• spinule
• Spinus
• Spinus pinus
• Spinus tristis
• spiny
• spiny anteater
• spiny dogfish
• spiny lizard
• spiny lobster
• spiny puffer
• spiny softshell