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Having a chamber or chambers; as, a chambered shell; a chambered gun.

ity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family. The belemnites are…

A form of seacoast cannon; a long, chambered gun designed for throwing shot or shells with heavy charges of powder, at high angles of elevation.

The bore of a gun; the turning chambered breech of a revolver.

An extensive order of rhizopods which generally have a chambered calcareous shell formed by several united zooids. Many of them have perforated walls, whence the name. Some species are covered with sand. See Rhizophoda.

The chambered sporogenous tissue forming the central mass of the sporophore in puff balls, stinkhorns, etc.

Like, or pertaining to, Lagena, a genus of Foraminifera having a straight, chambered shell.

measure the gas by filling and emptying. -- W, a gas meter in which the revolution of a chambered drum in water measures the gas passing through it.

), a building stone, one of the group of the Paris basin, almost entirely made up of many-chambered microscopic shells.

One-chambered.

l Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata.

A term formerly applied to a short piece of chambered ordnance. [Written also paterero and peterero.]

The thin chambered shell attached to the anterior end of a belemnite. [Written also phragmacone.]

A division of Foraminifera including those having a manychambered shell.

Many-chambered; -- applied to shells of Foraminifera and cephalopods. See Illust. of Nautilus.

il cephalopod shell of the genus Scaphites, belonging to the Ammonite family and having a chambered boat-shaped shell. Scaphites are found in the Cretaceous formation.

The tube which runs through the partitions of chambered cephalopod shells.

pistol or other firearm which can be fired six times without reloading especially, a six-chambered revolver. [Colloq. U.S.]