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mollusc

British  
/ mɒˈlʌskən, ˈmɒləsk /

noun

  1. any invertebrate of the phylum Mollusca, having a soft unsegmented body and often a shell, secreted by a fold of skin (the mantle). The group includes the gastropods (snails, slugs, etc), bivalves (clams, mussels, etc), and cephalopods (cuttlefish, octopuses, etc)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of mollusc

C18: via New Latin from Latin molluscus, from mollis soft

Example Sentences

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See Examples For:

Scientists photographed and filmed what looked like fields of marine life - dominated by various different types of tube worm and mollusc.

From BBC Jul. 30, 2025

Chemically speaking, its formation begins with a mollusc extracting calcium and carbonate ions from water.

From Science Daily Jan. 12, 2024

The mollusc deposits layers of aragonite and conchiolin, which together form nacre, also know as mother-of-pearl.

From BBC Sep. 5, 2022

“And I’ve got to say,” she says, “a mollusc is a nice companion.”

From The Guardian Nov. 17, 2020

They are, in fact, periodic precipitates of phosphate and carbonate of lime deposited in the colloidal organic substance of the mollusc.

From The Mechanism of Life by Leduc, Stéphane

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