copepoda
/koʊ.pɛˈpɒdə/ or /kɒˈpiːpɒdə/Definitions
1. noun
A suborder of small, usually transparent, usually free-floating, usually marine or brackish, crustaceans, usually with a single pair of antennae and often with a distinctive shape.
“The copepoda in the pond were a crucial part of the aquatic food chain.”