SINCE 1828
Mollusca
noun plural
Mol·lus·ca
| \ mə-ˈləs-kə
\
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Medical Definition of Mollusca
: a large phylum of invertebrate animals (as snails, clams, and mussels) that have a soft unsegmented body lacking segmented appendages and commonly protected by a calcareous shell
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Merriam-Webster unabridged
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