The position and spread of a solute within a series of tubes in a liquid-liquid extraction procedure. Also known as zone.

Any horizontal flat member or molding or group of moldings projecting slightly from a wall plane and usually marking a division in the wall. Also known as band course; band molding.

A range of electromagnetic-wave frequencies between definite limits, such as that assigned to a particular type of radio service.

A set of circular or cyclic recording tracks on a storage device such as a magnetic drum, disk, or tape loop.

Any of the characteristic transverse stripes exhibited by polytene or metaphase chromosomes that are stained.

A strip or cord crossing the back of a book to which the sections are sewn.

Any latitudinal strip, designated by accepted units of linear or angular measurement, which circumscribes the earth.

A thin layer or stratum of rock that is noticeable because its color is different from the colors of adjacent layers.

A metal sleeve joining together the barrel and stock of a gun.

A restricted range in which the energies of electrons in solids lie, or from which they are excluded, as understood in quantum-mechanical terms. Also known as energy bands.

See <<band spectrum>>