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.
First, we have to learn about what alkaline means. Alkalinity and acidity are measured on the pH scale, which is a scale from 0-14 that measures the concentration of hydrogen ions in compounds from batteries to food. Neutral is measured at 7.0, while acids are below 7.0 and alkaline compounds (or bases) are greater than 7.0.