Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of valve is as below...

Lip :: Lip (n.) One of the edges of the aperture of a univalve shell.

Lithodomus :: Lithodomus (n.) A genus of elongated bivalve shells, allied to the mussels, and remarkable for their ability to bore holes for shelter, in solid limestone, shells, etc. Called also Lithophagus..

Boat Shell :: Boat shell () A marine univalve shell of the genus Cymba.

Nucula :: Nucula (n.) A genus of small marine bivalve shells, having a pearly interior..

Condenser :: Condenser (n.) An instrument for condensing air or other elastic fluids, consisting of a cylinder having a movable piston to force the air into a receiver, and a valve to prevent its escape..

Xylotrya :: Xylotrya (n.) A genus of marine bivalves closely allied to Teredo, and equally destructive to timber. One species (Xylotrya fimbriata) is very common on the Atlantic coast of the United States..

Beak :: Beak (n.) The upper or projecting part of the shell, near the hinge of a bivalve..

Anodon :: Anodon (n.) A genus of fresh-water bivalves, having no teeth at the hinge..

Bellerophon :: Bellerophon (n.) A genus of fossil univalve shells, believed to belong to the Heteropoda, peculiar to the Paleozoic age..

Pallium :: Pallium (n.) The mantle of a bivalve. See Mantle.

Pearl :: Pearl (n.) A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Pearls which are round, or nearly round, and of fine luster, are highly esteemed

Pinna :: Pinna (n.) Any species of Pinna, a genus of large bivalve mollusks found in all warm seas. The byssus consists of a large number of long, silky fibers, which have been used in manufacturing woven fabrics, as a curiosity..

Septiferous :: Septiferous (a.) Bearing a partition; -- said of the valves of a capsule.

Trigonia :: Trigonia (n.) A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia..

Tulip-shell :: Tulip-shell (n.) A large, handsomely colored, marine univalve shell (Fasciolaria tulipa) native of the Southern United States. The name is sometimes applied also to other species of Fasciolaria..

Pallet :: Pallet (n.) In the organ, a valve between the wind chest and the mouth of a pipe or row of pipes..

Tellina :: Tellina (n.) A genus of marine bivalve mollusks having thin, delicate, and often handsomely colored shells..

Fig-shell :: Fig-shell (n.) A marine univalve shell of the genus Pyrula, or Ficula, resembling a fig in form..

Ark Shell :: Ark shell () A marine bivalve shell belonging to the genus Arca and its allies.

Multivalvular :: Multivalvular (a.) Having many valves.

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