0 any animal that has a soft body, no spine, and is often covered with a shell. Many mollusks live in water:
Oysters are mollusks, as are snails and cuttlefish.
1 any of a large group of animals that have soft bodies, no spine (= supporting bones), and usually a hard shell:
He posited four basic plans of organization in the animal kingdom - vertebrate, articulate, mollusk, and radiate - with no transitions between plans.
This consisted of two bowls placed lip to lip containing 1 jade bead and approximately 100 mollusks.
Effects of competition on rates of evolution, with special reference to bivalve mollusks and mammals.
Plenty of ancient mollusks will be unearthed, along with a few types of mammoth.
Their diet consists of mollusks and other meaty, live foods.
Fossils found near fossil palmwood include corals, sponges, and mollusks, indicating that the palms grew along prehistoric beaches.
Of these 3,600 species, 44 are protected, 117 are corals, 79 crustaceans, 108 sponges, 260 mollusks, 441 fin fishes, 147 seaweeds and 17 mangroves.
The oil had a drastic impact on the littoral crab and on the mollusk fauna of the beaches which were contaminated.
