The time in which a certain @V06627@ or @Y06727@ is reached after discontinuation of a shear. These times depend on the values of @V06627@ or @Y06727@ chosen by the experimenter.
Source: PAC, 1979, 51, 1213. (Terminology and Symbols in Colloid and Surface Chemistry Part 1.13. Definitions, Terminology and Symbols for Rheological Properties) on page 1217 [Terms] [Paper]