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.
Water described as hard is high in dissolved minerals, specifically calcium and magnesium. Hard water is not a health risk, but a nuisance because of mineral buildup on fixtures and poor soap and/or detergent performance. Sources of Hardness Minerals in Drinking Water; Water is a good solvent and picks up impurities easily.