Hypothalamic Amenorrhea. Amenorrhea simply means the absence of menstruation (one or more missed menstrual periods), and it can be caused by a variety of things, including problems with the reproductive organs or hormones.
Normality is an ambiguous measure of the concentration of a solution. It needs a definition of the equivalence factor, which depends on the definition of equivalents. The same solution can possess different normalities for different reactions.
singularity - the quality of being one of a kind; that singularity distinguished him from all his companions. uniqueness. individualism, individuality, individuation - the quality of being individual; so absorbed by the movement that she lost all sense of individuality.