tripinnate
/traɪˈpɪneɪt/
adjective
- Having leaflets arranged in three levels of division, like a feather that is divided three times.
- Botanists identified the plant by its tripinnate leaf structure.
- The fern's tripinnate leaves made it look very delicate and lacy.
- She admired the tripinnate fronds of the carrot plant in the garden.