2 definitions found

From WordNet (r) 2.0 [wn]:

niter

noun: (KNO3) used especially as a fertilizer and explosive [syn: {potassium nitrate}, {saltpeter}, {saltpetre}, {nitre}]

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Niter \Ni"ter\, Nitre \Ni"tre\, noun [F. nitre, L. nitrum native soda, natron, Gr. ?; cf. Ar. nit[=u]n, natr[=u]n natron. Cf. {Natron}.]

1. (Chem.) A white crystalline semitransparent salt; potassium nitrate; saltpeter. See {Saltpeter}.

2. (Chem.) Native sodium carbonate; natron. [Obs.]

For though thou wash thee with niter, and take thee much soap, yet thine iniquity is marked before me. --Jer. ii. 22.

{Cubic niter}, a deliquescent salt, sodium nitrate, found as a native incrustation, like niter, in Peru and Chile, whence it is known also as {Chile saltpeter}.

{Niter bush} (Bot.), a genus ({Nitraria}) of thorny shrubs bearing edible berries, and growing in the saline plains of Asia and Northern Africa.
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