trimerous
adjective
trim·er·ous ˈtri-mə-rəs 
: having the parts in threes —used of a flower and often written 3-merous
Word History
Etymology
New Latin trimerus, from Greek tri- + meros part — more at merit entry 1
First Known Use
1826, in the meaning defined above
- color sergeant
- color slab
- color solid
- color space
- color striker
- color temperature
- color tone
- color top
- color transparency
- color trial
- color triangle
- color wash
- color weakness
- color wheel
- color zone
- color-ball pool
- color-bearer
- color-blind
- color-blindness
- color-block
- color-blocked
- color-code
- color-feed
- color-field
- color-sensitize