Occurring at the same time.

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.

The quality or state of being simultaneous; simultaneity.

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.

(translation studies) A type of oral translation from one language into another which is produced at the same time as a person is speaking.

Synonym of simultaneous interpreting

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

plural of simultaneous death