Pereiopods

Part of speech: noun

Definitions

1. Referring to paired appendages primarily found in certain crustaceans used for walking or handling food ; the jointed limbs located on the thorax that assist in locomotion and feeding functions ; the thoracic limbs in some aquatic arthropods serving both as legs for movement and tools for grasping or manipulation
2. Segmented limbs attached to the midsection of some marine animals such as crabs, specialized for walking and feeding ; the articulated legs found on specific crustacean species functioning in both ambulation and food processing ; the series of paired legs on decapod crustaceans that combine the roles of walking appendages and manipulators of the environment
3. Paired jointed legs located on the body segments of certain aquatic arthropods used for movement and handling prey or food ; walking and feeding appendages found on decapods that allow both terrestrial locomotion and food interaction ; the specialized, segmented limbs extending from the thorax region that provide support in walking and assist in gathering nourishment

Etymology: "Pereiopods" is the plural of "pereiopod", the name for the walking legs attached to the thorax of a crustacean such as a crab, lobster or shrimp. The singular is built from two Greek elements. "Pereion" is the segment of the body (the thorax) to which these legs are attached, and "-pod" comes from Greek "pous" (foot), the same root that gives "octopod" and "tripod". Put together, the name simply means "thoracic foot" or "foot of the chest-section." The word is a technical coinage from classical roots, built the way zoologists have long named body parts by joining Greek pieces, rather than a term that has been passed down from ancient speakers.