mol·lusk also mol·lusc 
(mŏləsk)
(mŏləsk)n.
Any of numerous chiefly marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell, and including the snails, clams, and squids.
[French mollusque, from New Latin Mollusca, phylum name, from neuter pl. of Latin molluscus, thin-shelled, from mollis, soft; see mel-1 in the Appendix of Indo-European roots.]
mol·luscous (mə-lŭskəs) adj.
- undescended testicle
- undeserved
- undeservedly
- undesigning
- undesirability
- undesirable
- undesirably
- undetermined
- undid
- undies
- undifferentiated
- undignified
- undine
- undiplomatic
- undiplomatically
- undirected
- undiscriminating
- undisposed
- undisputed
- undissociated
- undistinguished
- undisturbed
- undo
- undock
- undocumented