parapodium
/ˌpɛrəˈpoʊdiəm/
noun
- A paired, limb-like projection on each segment of certain marine worms and other invertebrates, used for movement or respiration.
- The parapodium of a bristle worm looks like a small paddle.
- Marine biologists examined the structure of the parapodium under a magnifying glass.
- Each parapodium contains bristles that help the worm grip the ocean floor.