niter

[nahy-ter]
Also, especially British, nitre.


Origin:
1375–1425; late Middle English nitre < Latin nitrum < Greek nítron natron

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World English Dictionary
niter (ˈnaɪtə)
 
n
the usual US spelling of nitre

nitre or (US) niter (ˈnaɪtə)
 
n
potassium nitrate another name for sodium nitrate
 
[C14: via Old French from Latin nitrum, from Greek nitronnatron]
 
niter or (US) niter
 
n
 
[C14: via Old French from Latin nitrum, from Greek nitronnatron]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
niter   (nī'tər)  Pronunciation Key 
A naturally occurring mineral form of potassium nitrate. It is used to make gunpowder.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Selenium is recovered by roasting the mud with soda or sulfuric acid, or by smelting them with soda and niter.
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