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单词 phosphatic
释义 phosphatic, a.|fɒsˈfætɪk|
[f. phosphate n. (or mod.L. phōsphāt-um) + -ic.]
1. Of the nature of, characterized by the presence of, or containing a phosphate.
p. diathesis, a bodily condition predisposing to the excretion of phosphates in the urine; cf. phosphaturia. p. nodules, hard rounded lumps containing phosphate of lime, of fossil origin, found in certain strata, now used as manure.
1843R. J. Graves Syst. Clin. Med. iv. 50 Certain derangements of the urinary functions, such as the phosphatic and lithic diatheses.1847–9Todd Cycl. Anat. IV. 83/2 The tonsils are not unfrequently the seat of phosphatic deposit.1859Darwin Orig. Spec. x. (1878) 287 The presence of phosphatic nodules..in some of the lowest azoic rocks, probably indicates life at these periods.1866Reader 7 July 635 The dark phosphatic nodules are usually named coprolites.
2. phosphatic acid, ‘a name applied to the syrupy mixture of phosphoric and phosphorous acids, produced by the slow combustion of phosphorus in moist air’, formerly supposed to be a distinct acid; also called hypophosphoric acid. Obs.
1826Henry Elem. Chem. I. 370 The acid thus obtained is a mixture of phosphorous and phosphoric acids, &c. Dulong..believes it to be a distinct compound, for which he has proposed the name of phosphatic acid.1836–41Brande Chem. (ed. 5) 489. 1866–77 Watts Dict. Chem. IV. 499.
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