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.
â¢ ALKALI (noun). The noun ALKALI has 2 senses: 1. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water. 2. a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture.Familiarity information: ALKALI used as a noun is rare.Dictionary entry details.. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water. 2. a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture.