(mathematics, physics) Not time-dependent; not determined by the value of a variable representing time.

(medicine) A calcium-encased foetus that occurs in ectopic abdominal pregnancies when the foetus dies and is not reabsorbed by the maternal body, whereby the maternal system encases the foreign bod...

plural of reunionist

(mathematics) The vertical line in the complex plane, every point on which corresponds to a complex number having zero real component