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isopyre

[ ahy-suh-pahyuhr ]
/ ˈaɪ səˌpaɪər /

noun Mineralogy.

an impure variety of opal, containing alumina, lime, and iron sesquioxide.

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You may have read the word "simmer" in a recipe or two, but what does it really mean?
To cook in water that begins cold and then reaches a boil.
To stew in a sauce for a long time.
To cook in water, just below boiling temperature.
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Origin of isopyre

1820–30; iso- + Greek pŷr fire

Words nearby isopyre

isopteran, isopterous, Isoptin, isopycnal, isopycnic, isopyre, ISO rating, Isordil, iso-reel, isorhythm, isorhythmic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020