Noun

(en noun)

A place where anything is kept in store; especially, a place where water is collected and kept for use when wanted, as to supply a fountain, a canal, or a city by means of aqueducts.

A small intercellular space, often containing resin, essential oil, or some other secreted matter.

A supply or source of something.

* {{quote-magazine, year=2013, month=May-June, author= Katie L. Burke

, title= In the News , volume=101, issue=3, page=193, magazine=(American Scientist) , passage=Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.}}

Noun

(en noun)

(geometry) A surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve.

When the two-dimensional curve is a circle, the cylinder is called a circular cylinder''. When the axis is perpendicular to the plane of the curve, the cylinder is called a ''right cylinder''. In non-mathematical usage, both ''right'' and ''circular are usually implied.

(geometry) A solid figure bounded by a cylinder and two parallel planes intersecting the cylinder.

Any object in the form of a circular cylinder.

* 1898 — , The War of the Worlds Ch.4

A big greyish rounded bulk, the size, perhaps, of a bear, was rising slowly and painfully out of the cylinder .

A cylindrical cavity or chamber in a mechanism, such as the counterpart to a piston found in a piston-driven engine.

A container in the form of a cylinder with rounded ends for storing pressurized gas.

An early form of phonograph recording, made on a wax cylinder.

The part of a revolver that contains chambers for the cartridges.

(computing) The corresponding tracks on a vertical arrangement of disks in a disk drive considered as a unit of data capacity.