trimerous

tri- +‎ -merous; ultimately from tri-, from Ancient Greek τρία (tría, “three”); + Ancient Greek μέρος (méros, “part”).

trimerous (not comparable)

1. (botany) Organized in threes; having parts in numbers that are multiples of three.

   The monocots typically have trimerous flowers.

2. (zoology) Having three joints.

• monomerous (1), dimerous (2), tetramerous (4), pentamerous (5), hexamerous (6), heptamerous (7), octamerous (8)

• trimer
• trimeric
• trimery