The microscopic functional and structural unit of all living organisms, consisting of a nucleus, cytoplasm, and a limiting membrane.

1. An elementary unit of data storage.

2. In a spreadsheet, the intersection of a row and a column.

A single unit of a battery.

A manufacturing unit consisting of a group of work stations and their interconnecting materials- transport mechanisms and storage buffers.

1. The homeomorphic image of the unit ball.

2. One of the (n - 1)-dimensional polytopes that enclose a given n-dimensional polytope.

A compartment in a flotation machine.

One of a set of elementary regions in a heterogeneous reactor, all of which have the same geometrical form and the same neutron characteristics.

A cup, jar, or vessel containing electrolyte solutions and metal electrodes to produce an electric current (conductiometric or potentiometric) or for electrolysis (electrolytic).