tunicate

/ˈtunɪkət/
noun
  1. A sea animal with a soft body that lives inside a tough outer covering, such as a sea squirt.
    • Some tunicates live alone, while others form large colonies on the ocean floor.
    • We saw a clear tunicate attached to the dock at low tide.
    • The tunicate filters plankton from the water through its siphon.
adjective
  1. Having a natural outer covering or coat, like a tunic.
    • Certain tunicate species have a tough, leathery outer layer.
    • Botanists describe the tunicate bulb as having layered, papery skins.
    • The tunicate body of the animal protects it from predators.