Speed Skiers. Speed skiers, who dress in aerodynamic apparel and ski straight down the mountain sans turning, go as fast as 120 - 150 miles per hour. World record holders, like Italy's Simone Origone, have reached 156.2 miles per hour.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  alkaline(Noun) An alkaline battery. 2  alkaline(Adjective) Of, or relating to an alkali, one of a class of caustic bases. 3  alkaline(Adjective) Having a pH greater than  7.
Medical Definition of Alkaline phosphatase. Alkaline phosphatase: An enzyme that liberates phosphate under alkaline conditions and is made in liver, bone, and other tissues. Alkaline phosphatase can be measured in a routine blood test. Abnormally high serum levels of alkaline phosphatase may indicate bone disease, liver disease, or bile duct obstruction.