Muscle tone. Definition. noun. (1) The muscle in a steady partially contracted state caused by the successive flow of nerve impulses. (2) The amount of tension or resistance to movement in a muscle. Supplement. Muscle tone or tonus helps in maintaining body posture.
Hydronephrosis is the distention of the pelvis and calyces of one or both kidneys, resulting in thinning of the renal tubules because of obstructed urinary flow. When the obstruction is a stone or kink in one of the ureters, only one kidney is damaged.
1. increasing the volume of the urine excreted. 2. a diuretic medicine or agent, as a thiazide. [1375â1425; Middle English d(i) uretik diÅ«rÄticus diourÄtikos = diourÄtikÃ³s- (diourÄ see)]. diuresis`diâ¢uâ²retâ¢iâ¢cal, ly. adv