A creatinine blood test measures the level of creatinine in the blood. Creatinine is a waste product that forms when creatine breaks down.Creatine is a substance found in muscle.Creatinine levels help determine how well your kidneys function. Your kidneys are responsible for eliminating creatinine from the body when you urinate. When creatinine levels increase, your kidney function may be impaired.reatinine is a waste product that forms when creatine breaks down. Creatine is a substance found in muscle. Creatinine levels help determine how well your kidneys function.
vertical centering control. (electronics). The centering control provided in a television receiver or cathode-ray oscilloscope to shift the position of the entire image vertically in either direction on the screen. 1  Facebook. 2  Twitter.
2. (Architecture) denoting, relating to, or having the style of Gothic architecture used in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting. 3. upright; vertical. n. 4. (Mathematics) geometry a line or plane perpendicular to another. 5.