pentameries
/pɛnˈtæməriz/
noun
- Plural of pentamery; the quality or state of being arranged in groups of five, especially in botany or zoology.
- The pentameries of the flower's petals made it easy to identify as a dicot.
- The pentameries of the plant's floral parts are a key characteristic of its family.
- In biology class, we studied the pentameries of starfish arms.