Teenage Depression statistics show that teen depression is a common problem 1  : About 20 percent of teens will experience teen depression before they reach adulthood. 2  Between 10 to 15 percent of teenagers have some symptoms of teen depression at any one time.
1. alkaline-relating to or containing an alkali; having a pH greater than 7; alkaline soils derived from chalk or limestone. alkalic. chemical science, chemistry-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.
Full Definition of ALKALI. 1. : a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly: a substance (as a hydroxide or carbonate of an alkali metal) having marked basic properties â compare base 7a. 2. : alkali metal.3.efinition of ALKALI for Kids. 1. : a substance that has a bitter taste and reacts with an acid to form a salt: base. 2. : a salt or a mixture of salts sometimes found in large amounts in the soil of dry regions.