mollusc
noun /ˈmɒləsk/
/ˈmɑːləsk/
(British English) (US English mollusk)
(specialist)- any creature with a soft body that is not divided into different sections, and usually a hard outer shell. Snails and slugs are molluscs.
软体动物（门） 词源late 18th cent.: from modern Latin mollusca, neuter plural of Latin molluscus, from mollis ‘soft’.