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alth lift, under Health. -- Lifting pump. (Mach.) (a) A kind of pump having a bucket, or valved piston, instead of a solid piston, for drawing water and lifting it to a high level. (b) A pump which lifts the water only to the top of the pump, or delivers it through a spout; a lift pump. -- Lifting rod, a vertical rod…

e ends of which the eccentric rods are jointed, and by means of which the movement of the valve is varied, in a link motion.

A valve gear, consisting of two eccentrics with their rods, giving motion to a slide valve by an adjustable connecting bar, called the link, in such a way that the motion of the engine can be reversed, or the cut-off varied, at will; -- used very generally in locomotives and marine engines.

One of the edges of the aperture of a univalve shell. Lip bit, a pod auger. See Auger. -- Lip comfort, comfort that is given with words only. -- Lip comforter, one who comforts with words only. -- Lip labor, unfelt or insincere speech; hypocrisy. Bale. -- Lip reading, the catching of the words or meaning of one spe…

Any one of several species of bivalves, which form holes in limestone, in which they live; esp., any species of the genus Lithodomus.

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.

or destroying stone; -- applied to various animals which make burrows in stone, as many bivalve mollusks, certain sponges, annelids, and sea urchins. See Lithodomus.

An elongated pod, consisting, like the legume, of two valves, but divided transversely into small cells, each containing a single seed.

A special area in front of the beak of many bivalve shells. It sometimes has the shape of a double crescent, but is oftener heart- shaped. See Illust. of Bivalve.

An order of brachiopods, in which the valves of shell are not articulated by a hinge. It includes the Lingula, Discina, and allied forms. [Written also Lyopoma.]

Any marine bivalve shell of the genus Mactra, and allied genera. Many species are known. Some of them are used as food, as Mactra stultorum, of Europe. See Surf clam, under Surf.

A genus of nemertean worms, parasitic in the gill cavity of clams and other bivalves. They have a large posterior sucker, like that of a leech. See Illust. of Bdellomorpha.

A genus of bivalve shells; the hammer shell.

A genus of small, polished, marine univalve shells, native of all warm seas.

e larva constructs an earthen cocoon under the soil. -- Mason shell (Zoöl.), a marine univalve shell of the genus Phorus; -- so called because it cements other shells and pebbles upon its own shell; a carrier shell. -- Mason wasp (Zoöl.), any wasp that constructs its nest, or brood cells, of hardened mud. The female…

One of a group of univalve shells, having a large aperture or mouth.

A large, ornamental, marine, univalve shell of the genus Melo. Melon beetle (Zoöl.), a small leaf beetle (Diabrotiea vittata), which damages the leaves of melon vines. -- Melon cactus, Melon thistle. (a) (Bot.) A genus of cactaceous plants (Melocactus) having a fleshy and usually globose stem with the surface divided…

ht angle. See Miter, 2. -- Miter shell (Zoöl.), any one of numerous species of marine univalve shells of the genus Mitra. -- Miter square (Carp.), a bevel with an immovable arm at an angle of 45º, for striking lines on stuff to be mitered; also, a square with an arm adjustable to any angle. -- Miter wheels, a pair o…

Pertaining to a miter; resembling a miter; as, the mitral valve between the left auricle and left ventricle of the heart.

y are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve.