noun
definition
A soft-bodied invertebrate of the phylum Mollusca, typically with a hard shell of one or more pieces.
definition
A weak-willed person.
Examples of mollusk in a Sentence
Natural pearls form inside mollusk shells and are a type of calcium carbonate.
It is a fossil ammonite - an extinct mollusk that floated through the seas in its coiled shell.
Both a cultured pearl and a natural pearl form inside of an oyster as the result of a foreign object, which becomes an irritant, getting lodged inside the body of the mollusk.
Mother-of-Pearl Iridescent, milky interior shell of the fresh water mollusk that is sliced thin and used on watch dials.
The mollusca Section at NMW, Cardiff holds one of the largest mollusk collections in Europe.
Notwithstanding the origin of organs, it still for a certain time, by reason of its want of an internal bony skeleton, remains worm and mollusk, and only later enters into the series of the Vertebrata, although traces of the vertebral column even in the earliest periods testify its claim to a place in that series."