mollusc

/ˈmɑləsk/
noun
  1. An animal with a soft body, often protected by a hard shell, such as a snail, clam, or octopus.
    • An octopus is a clever mollusc with no outer shell.
    • The garden was full of small molluscs like snails and slugs.
    • Clams and oysters are molluscs that live in the ocean.
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