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A group of nudibranchiate Mollusca having on the back papilliform or branched organs serving as gills.

One of a group of gastropod mollusks, with a shell composed of eight movable dorsal plates. See Polyplacophora.

ng the esophagus; -- in Zool. said of the nerve commissures and ganglia of arthropods and mollusks.

A division of Mollusca having slender, cirriform appendages near the mouth; the Scaphopoda.

A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri.

A bivalve mollusk of many kinds, especially those that are edible; as, the long clam (Mya arenaria), the quahog or round clam (Venus mercenaria), the sea clam or hen clam (Spisula solidissima), and other species of the United States. The name is said to have been given originally to the Tridacna gigas, a huge East Indi…

A mollusk. See Clam. [Obs.] Clamp nails, nails used to fasten on clamps in ships.

A genus of freshwater leeches, furnished with a proboscis. They feed upon mollusks and worms.

A female coadjutor or assistant. Holland. Smollett.

A bivalve mollusk, with radiating ribs, of the genus Cardium, especially C. edule, used in Europe for food; -- sometimes applied to similar shells of other genera.

A ringlike part of a mollusk in connection with esophagus.

That class of Mollusca which includes the bivalve shells; the Lamellibranchiata. See Mollusca.

The science of Mollusca, and of the shells which they form; malacology.

o gain from a state of hostility; to gain the good will or favor of; to make friendly; to mollify; to propitiate; to appease. The rapacity of his father's administration had excited such universal discontent, that it was found expedient to conciliate the nation. Hallam.

Tending to conciliate; pacific; mollifying; propitiating. The only alternative, therefore, was to have recourse to the conciliatory policy. Prescott.

A Linnean genus of mollusks having a conical shell. See Cone, n., 4.

A substance added to a medicine to mollify or modify its action. Dunglison.

The American wood rabbit (Lepus sylvaticus); -- also called Molly cottontail.

Cross buttock, a particular throw in wrestling; hence, an unexpected defeat or repulse. Smollet. -- Cross country, across the country; not by the road. "The cross- country ride." Cowper. -- Cross fertilization, the fertilization of the female products of one physiological individual by the male products of another,…

A group of nudibranch mollusks.