Hard Water

Science / Geology / Hard Water: Water that has a significant amount of dissolved calcium and magnesium ions. This water performs poorly with most soaps and detergents and leaves a scaly deposit in containers where it is heated or evaporates. It can frequently be improved through the use of home-based water treatment systems.
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Other Words for Hard

Hard Adverb Synonyms: intently, carefully, earnestly
Hard Verb Synonyms: rigid, stiff, solid, inflexible, firm, dense, condensed, compressed, close, solidified, hardened, stony, rocklike, concrete, petrified, granite(-like), flinty, steely, tough, rugged, leathery, callous, unyielding, adamant(ine), impenetrable, obdurate
Hard Adjective Synonyms: difficult, perplexing, knotty, puzzling, baffling, enigmatic, intricate, complicated, complex, tangled, involved, thorny, incomprehensible, inscrutable, unsolvable, insoluble, tough

Other Words for Water

Water Noun Synonyms: H2O, distilled water, tap water, drinking-water, bottled water, spa water, still water, soda (water), effervescent water, mineral water, sea water, salt water, ditch-water, dishwater, bath-water, branch water, Adam's ale, Latin a

Safe Drinking Water Act (SDWA)

Business / Agriculture / Safe Drinking Water Act (SDWA): P.L. 93-523 (December 16, 1974) as amended, is the key federal law for protecting public water systems from harmful contaminants. First enacted in 1974, the Act, as amended, is administered by the Env MORE

Salt Water

Science / Weather / Salt Water: The water of the ocean, distinguished from fresh water by its appreciable salinity. MORE

Shallow Water Constituent

Science / Tides and Currents / Shallow Water Constituent: A short-period harmonic term introduced into the formula of tidal (or tidal current) constituents to account for the change in the form of a tide wave resulting from shallow water conditions. Shallow MORE

Shallow Water Wave

Science / Tides and Currents / Shallow Water Wave: A wave is classified as a shallow water wave whenever the ratio of the depth (the vertical distance of the still water level from the bottom) to the wave length (the horizontal distance between crests MORE

Safe Drinking Water Act

Business / Real Estate / Safe Drinking Water Act: Enacted by Congress in 1974, this federal law administered by the EPA and equivalent state regulators to establish and enforce drinking water standards. MORE

Roll, Richard

Business / Finance / Roll, Richard: Author of path-breaking work on asset pricing including the famous Roll critique. Finance professor at UCLA. MORE