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Existing, happening, or done, at the same time; as, simultaneous events. -- Si`mul*ta"ne*ous*ly, adv. -- Si`mul*ta"ne*ous*ness, n. Simultaneous equations (Alg.), two or more equations in which the values of the unknown quantities entering them are the same at the same time in both or in all.

At the same time; simultaneously. [Obs.] Abreast therewith began a convocation. Fuller.

An instrument for taking azimuths and altitudes simultaneously.

e production of the tones of a chord in rapid succession, as in playing the harp, and not simultaneously; a strain thus played.

Not simultaneous; not concurrent in time; --opposed to synchronous.

pe, one that plays obliquely. -- Battery gun, a gun capable of firing a number, of shots simultaneously or successively without stopping to load. -- Battery wagon, a wagon employed to transport the tools and materials for repair of the carriages, etc., of the battery. -- In battery, projecting, as a gun, into an emb…

lorless liquid, CHBr3, having an agreeable odor and sweetish taste. It is produced by the simultaneous action of bromine and caustic potash upon wood spirit, alcohol, or acetone, as also by certain other reactions. In composition it is the same as chloroform, with the substitution of bromine for chlorine. It is somewha…

A combination of tones simultaneously performed, producing more or less perfect harmony, as, the common chord.

The simultaneous of a company in any noisy demonstration; as, a Chorus of shouts and catcalls.

nion formed by mutual communication of opions and viewa; accordance in a scheme; harmony; simultaneous action. All these discontens, how ruinous soever, have arisen from the want of a due communication and concert. Swift.

An agreeable combination of tones simultaneously heard; a consonant chord; consonance; harmony.

Presenting themselves simultaneously and having reciprocal properties; -- frequently used in pure and applied mathematics with reference to two quantities, points, lines, axes, curves, etc. Conjugate axis of a hyperbola (Math.), the line through the center of the curve, perpendicular to the line through the two foci.…

Accord or agreement of sounds produced simultaneously, as a note with its third, fifth, and eighth.

brake which is attached to each car a train, and can be caused to operate in all the cars simultaneously from a point on any car or on the engine. -- Continuous impost. See Impost.

The condition of certain species of plants, in which the stamens and pistil do not mature simultaneously, so that these plants can never fertilize themselves.

-- Duplex telegraphy, a system of telegraphy for sending two messages over the same wire simultaneously. -- Duplex watch, one with a duplex escapement.

A simultaneous discharge of firearms.

, a vessel fitted up for a floating hospital. -- Hospital Sunday, a Sunday set apart for simultaneous contribution in churches to hospitals; as, the London Hospital Sunday.

A sudden compression of the air in the mouth, simultaneously with and affecting the sound made by the closure of the organs in uttering p, t, or k, at the end of a syllable (see Guide to Pronunciation, §§159, 189); also, a similar compression made by an upward thrust of the larynx without any accompanying explosive act…

To cultivate by planting simultaneous crops in alternate rows; as, to intercrop an orchard. Also, to use for catch crops at seasons when the ground is not covered by crops of the regular rotation.