- hard water
-
water with a high concentration of dissolved minerals, especially calcium, making it difficult to lather with soap
Wikipedia foundation.
hard water
Look at other dictionaries:
Hard water — is the type of water that has high mineral content (in contrast with soft water ). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and… … Wikipedia
hard water — water that contains magnesium, calcium, or iron salts and therefore forms a soap lather with difficulty. * * * Water that contains mineral salts of calcium and magnesium, principally as bicarbonates, chlorides, and sulfates, and sometimes iron.… … Universalium
Hard water — Hard Hard (h[aum]rd), a. [Compar. {Harder} ( [ e]r); superl. {Hardest}.] [OE. hard, heard, AS. heard; akin to OS. & D. hard, G. hart, OHG. herti, harti, Icel. har[eth]r, Dan. haard, Sw. h[*a]rd, Goth. hardus, Gr. kraty s strong, ka rtos, kra tos … The Collaborative International Dictionary of English
Hard water — Water Wa ter (w[add] t[ e]r), n. [AS. w[ae]ter; akin to OS. watar, OFries. wetir, weter, LG. & D. water, G. wasser, OHG. wazzar, Icel. vatn, Sw. vatten, Dan. vand, Goth. wat[=o], O. Slav. & Russ. voda, Gr. y dwr, Skr. udan water, ud to wet, and… … The Collaborative International Dictionary of English
hard water — Is hard water ever used to make soft drinks? … English expressions
hard water — kietas vanduo statusas T sritis chemija apibrėžtis Vanduo, kurio kietumas >8 mmol/l. atitikmenys: angl. hard water rus. жесткая вода … Chemijos terminų aiškinamasis žodynas
hard water — kietas vanduo statusas T sritis fizika atitikmenys: angl. hard water vok. hartes Wasser, n rus. жёсткая вода, f pranc. eau calcaire, f; eau crue, f; eau dure, f … Fizikos terminų žodynas
hard water — kietas vanduo statusas T sritis ekologija ir aplinkotyra apibrėžtis Gėlas požeminis vanduo, kurio kietis dėl jame ištirpusių kalcio ir magnio druskų yra didesnis kaip 6 mg ekv/l. atitikmenys: angl. hard water vok. hartes Wasser, n rus. жёсткая… … Ekologijos terminų aiškinamasis žodynas
hard water — water with high concentrations of dissolved calcium and magnesium salts, usually found in limestone areas … Dictionary of ichthyology
hard water — water containing a high concentration of minerals and calcium … English contemporary dictionary
hard water — noun water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap • Ant: ↑soft water • Hypernyms: ↑water, ↑H2O * * * water that contains magnesium, calcium, or iron salts and therefore forms a… … Useful english dictionary
