Definition that contains chitinous
- crustacean any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
- hypodermis layer of cells that secretes the chitinous cuticle in e.g. arthropods
- arcella an amoeba-like protozoan with a chitinous shell resembling an umbrella
- chaeta a stiff chitinous seta or bristle especially of an annelid worm