Gonad. Definition. noun, plural: gonads. The sex organ producing gametes. Supplement. The gonads pertain to the anatomical part of the body where sex cells (gametes) are synthesized. For instance, the gonads in females are the ovaries whereas in males are the testes.Word origin: from Greek gonos, procreation, genitals.onad. Definition. noun, plural: gonads. The sex organ producing gametes. Supplement. The gonads pertain to the anatomical part of the body where sex cells (gametes) are synthesized. For instance, the gonads in females are the ovaries whereas in males are the testes.
Water is considered hard when the pH level is above 8.5. Hard water does not pose a health risk, but can cause aesthetic problems such as: 1  Bitter taste to the water and beverages such as tea or coffee. 2  Scales on piping and fixtures that reduces the internal diameter and can reduce pressure. 3  Deposits on dishes and tubs and sinks.
As the pH value lowers, the water is considered more acidic and as it elevates above 7 it is considered more alkaline. Standards for drinking water suggest a pH value of between 6.5 and 8.5. Water is considered soft as the level drops toward the lower side of 6.5 and out of the recommended range. Association with higher levels of metals such as iron, manganese, copper, and lead and the health risks associated with each. Acidity can cause premature damage to metal piping.