The process of filtration of the blood in the Bowman's capsule is ultrafiltration (or glomerular filtration), and the normal rate of filtration is 125 ml/min, equivalent to ten times the blood volume daily. Measuring the glomerular filtration rate (GFR) is a diagnostic test of kidney function.
penalty kick. n. 1. (Soccer) soccer a free kick at the goal from a point (penalty spot) within the penalty area and 12 yards (about 11 m) from the goal, with only the goalkeeper allowed to defend it: awarded to the attacking team after a foul within the penalty area by a member of the defending team.
If a direct kick foul occurs in the penalty area, it is a penalty kick. The ball and the player playing the ball could be outside the penalty area, and an opponent without the ball could be fouled inside the penalty area thus resulting in a penalty kick.