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.
A liquid that has a pH of 7 is considered to be neutral (pure water is generally considered to have a neutral pH). Fluids that have a pH below 7 - like lemon juice and coffee-are considered to be acidic. And fluids that have a pH above 7 - like human blood and milk of magnesia-are considered to be alkaline.