Definition of acupressure : the application of pressure (as with the thumbs or fingertips) to the same discrete points on the body stimulated in acupuncture that is used for its therapeutic effects (such as the relief of tension or pain) â compare shiatsu
The SVI is the volume, in milliliters, occupied by 1 gram of settled activated sludge, and it is a measure of the settling characteristics of the sludge.
Sievert (Sv) Sievert (Sv), unit of radiation absorption in the International System of Units (SI). The sievert takes into account the relative biological effectiveness (RBE) of ionizing radiation, since each form of such radiationâe.g., X-rays, gamma rays, neutronsâhas a slightly different effect on living tissue.