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isopyre
[
ahy
-s
uh
-pahy
uh
r]
Word Origin
noun
Mineralogy
.
an impure variety of opal, containing alumina, lime, and iron sesquioxide.
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Origin of
isopyre
1820–30;
iso-
+
Greek
pŷr
fire
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
