Occurring at the same time.

The quality or state of being simultaneous; simultaneity.

Happening at the same moment. / (mathematics, of a set of equations) To be solved for the same values of variables.

The quality or state of being simultaneous; simultaneousness.

plural of simultaneity

(music) Any two or more pitches or pitch classes all of which occur simultaneously, or at the same time. It may be thought of as a more general term for any possible chord. Any chord progression or harmonic progression is then a simultaneity succession, though not all simultaneity successions are harmonic progressions and not all simultaneities are chords.

plural of simultaneous death

(law) In the law of wills, the death of two persons, each of whom would inherit the estate of the other if deemed to have survived the other, where such deaths occur within a time period set by statute (typically 120 hours), because of which the law treats each person as if they had died before the other in determining the distribution of estates.

(mathematics) finite sets of equations whose common solutions are sought

Synonym of simultaneous interpreting