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n. pl. mol·lus·ca (-kə)
Any of various skin diseases in which soft spherical tumors form on the face or the body.

[Latin, a kind of fungus, from neuter of molluscus, soft; see mollusk.]


pl n
the molluscs considered collectively
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mollusca - gastropodsMollusca - gastropods; bivalves; cephalopods; chitons
animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals
mollusc, mollusk, shellfish - invertebrate having a soft unsegmented body usually enclosed in a shell
class Scaphopoda, Scaphopoda - small class of bilaterally symmetrical marine forms comprising the tooth shells
class Gasteropoda, class Gastropoda, Gasteropoda, Gastropoda - snails and slugs and their relatives
class Polyplacophora, Polyplacophora - small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura
Cephalopoda, class Cephalopoda - octopuses; squids; cuttlefish; pearly nautilus
phylum - (biology) the major taxonomic group of animals and plants; contains classes
References in classic literature ?
Its nets brought up numerous specimens of polypi and curious shells of mollusca.
There was little sand, though from the deck of the U-33 the beach had appeared to be all sand, and I saw no evidences of mollusca or crustacea such as are common to all beaches I have previously seen.
8] If we suppose the case of the discovery of a skeleton of a Greenland whale in a fossil state, not a single cetaceous animal being known to exist, what naturalist would have ventured conjecture on the possibility of a carcass so gigantic being supported on the minute crustacea and mollusca living in the frozen seas of the extreme North?
Early growth stages of Arenigian Baltoscandic Orthocerida Mollusca, Cephalopoda.
Among the numerous laws that form part of kashrut are the prohibitions on the consumption of unclean animals (such as pork, shellfish (both Mollusca and Crustacea) and most insects, with the exception of certain species of kosher locusts), mixtures of meat and milk, and the commandment to slaughter mammals and birds according to a process known as shechita.
A natural arrangement of Mollusca, according to their internal structure.
2]) and relative abundance (%) of indicatory taxonomic groups (EPT, Chironomidae, Oligochaeta, Mollusca, Coleoptera and Isopoda).
Mollusca is the second largest phylum of animals after Arthropoda (insects, arachnids, crustaceans, and a few others).
Quarry discharge and downstream sites contained more Mollusca, particularly Corbicula fluminea.
Mae'r octopws yn perthyn i ffylwm y Mollusca, sef anifeiliaid fel malwod, gwlithos, cregyn gleision, cocos, cregyn bylchog a'r twyllwr du.
A total of 39 species of macrobenthic invertebrates were identified, 5 species of Phylum Annelida, 30 species of Arthropoda and 4 species of Mollusca (Table 2).
For statistical comparisons among groups, prey items were grouped into the following major taxonomical groups: Sipuncula, Annelida, Crustacea, Mollusca, Echinodermata, Chondrichthyes, Teleostei, Urochordata, as well as unidentified material.