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Allowing passage in either of four directions; as, a four-way cock, or valve. Francis. Four-way cock, a cock connected with four pipes or ports, and having two or more passages in the plug, by which the adjacent pipes or ports may be made to communicate; formerly used as a valve in the steam engine, and now for various…

A spectro-electric tube in which the decomposition of a liquid by the passage of an electric spark is observed. Knight.

A passage or avenue for a fluid or flowing substance; specifically, a smoke flue or pipe; the iron chimney of a steamship or the like. Funnel box (Mining), an apparatus for collecting finely crushed ore from water. Knight. -- Funnel stay (Naut.), one of the ropes or rods steadying a steamer's funnel.…

A long and narrow corridor, or place for walking; a connecting passageway, as between one room and another; also, a long hole or passage excavated by a boring or burrowing animal.

A concretion, or calculus, formed in the gall bladder or biliary passages. See Calculus, n., 1.

Cautery effected by a knife or needle heated by the passage of a galvanic current.

A passage or way into or out of any inclosed place; esp., a temporary way of access formed of planks.

n opening in anything made by breaking or parting; as, a gap in a fence; an opening for a passage or entrance; an opening which implies a breach or defect; a vacant space or time; a hiatus; a mountain pass. Miseries ensued by the opening of that gap. Knolles. It would make a great gap in your own honor. Shak. Gap lathe…

Pertaining to the alimentary canal and air passages, and to the cavities connected with them; as, the gastropneumatic mucuos membranes.

A large door or passageway in the wall of a city, of an inclosed field or place, or of a grand edifice, etc.; also, the movable structure of timber, metal, etc., by which the passage can be closed.

A passage through a fence or wall; a gate; also, a frame, arch, etc., in which a gate in hung, or a structure at an entrance or gate designed for ornament or defense.

f portions of the Wolffian and Müllerian ducts and giving rise to parts of the urogenital passages in both sexes.

An open passage through a wood; a grassy open or cleared space in a forest. There interspersed in lawns and opening glades. Pope.

A collection of glosses or explanations of words and passages of a work or author; a partial dictionary of a work, an author, a dialect, art, or science, explaining archaic, technical, or other uncommon words.

A narrow passage or entrance; as:

Ornamental notes or short passages, either introduced by the performer, or indicated by the composer, in which case the notation signs are called grace notes, appeggiaturas, turns, etc.

Something shaped like the food passage, or performing similar functions; as:

danum, a fragrant gum yielded by several Oriental species of Cistus or rock rose. -- Gum passages, sap receptacles extending through the parenchyma of certain plants (Amygdalaceæ, Cactaceæ, etc.), and affording passage for gum. -- Gum pot, a varnish maker's utensil for melting gum and mixing other ingredients. -- Gu…

A narrow passage of water; as, the Gut of Canso.

Any corridor or passage in a building.