Water retention, formally known as edema, is a symptom of a number of conditions including dehydration, constipation, hormonal changes, excess sodium in the diet, heart conditions and kidney problems.
dross. n. 1. Waste or impure matter: discarded the dross after recycling the wood pulp. 2. The scum that forms on the surface of molten metal as a result of oxidation. 3. Worthless, commonplace, or trivial matter: He was wide-awake and his mind worked clearly, purged of all dross (Vladimir Nabokov).
noun: drachm; plural noun: drachms; symbol: dr. 1  a unit of weight formerly used by apothecaries, equivalent to 60 grains or one eighth of an ounce. ( 2 in numismatics) an ancient silver coin based on the Attic or Hellenistic drachma.