Definition of Mollusca

1. Noun. Gastropods; bivalves; cephalopods; chitons.


Definition of Mollusca

1. n. pl. One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, Pteropoda, Scaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve.

Definition of Mollusca

1. molluscum [n] - See also: molluscum

Medical Definition of Mollusca

1. One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve. Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata in an artificial group called Acephala, which was also included under Mollusca. See Molluscoudea. (19 Mar 1998)

Lexicographical Neighbors of Mollusca

mollifie
mollified
mollifier
mollifiers
mollifies
mollify
mollifying
mollifyingly
mollipilose
mollisol
mollisols
mollities
mollitude
molls
mollusc
mollusca (current term)
molluscacides
molluscan
molluscan catch muscle
molluscans
molluscicidal
molluscicide
molluscicides
molluscivore
molluscivores
mollusclike
molluscoid
molluscoidal
molluscoidea

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