noun
- paired, fleshy appendages found on each body segment of polychaete worms, used for locomotion and respiration
Usage: biology; zoology
Examples
- The marine worm’s parapodia helped it burrow through the sandy ocean floor.
- Each segment of the polychaete bore a pair of parapodia with bristle-like setae.
- The parapodia contain blood vessels that aid in gas exchange.
- Scientists examined the parapodia under a microscope to identify the species.
- The worm’s parapodia moved in a wave-like motion as it swam.
- Damage to the parapodia can affect the worm’s ability to move effectively.