the GNU version of the Collaborative International Dictionary of English
adj. Molluscan.
The Century Dictionary and Cyclopedia
Same as molluscan: as, molluscous softness or flabbiness.
Word Usage
"Such shoals may be produced when volcanic islands are leveled by waves and ocean currents, and when submarine plateaus, ridges, and peaks are built up by various organic agencies, such as molluscous and foraminiferal shell deposits."