More astonishing than the difference between the length of the lists of Old World's and New World's domesticated animals is the difference between the lengths of the lists of infectious diseases native to the two.
Fetal Hemoglobin Test. Definition. Fetal hemoglobin (Hemoglobin F), Alkali-resistant hemoglobin, HBF (or Hb F), is the major hemoglobin component in the bloodstream of the fetus. After birth, it decreases rapidly until only traces are found in normal children and adults. Purpose.
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.