What does Pyrognomic mean?
Definitions for Pyrognomic
py·rog·nom·ic
This dictionary definitions page includes all the possible meanings, example usage and translations of the word Pyrognomic.
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Wikipedia
Pyrognomic
Pyrognomic materials are said to become visibly incandescent at relatively low temperatures. In practice, virtually all solid or liquid substances start to visibly incandesce around 798 K (525 °C; 977 °F), with a mildly dull red color, whether or not a chemical reaction takes place that produces light as a result of an exothermic process. This limit is called the Draper point. The incandescence does not vanish below that temperature, but it is too weak in the visible spectrum to be perceivable. Pyrognomic materials are thought to visibly incandesce at much lower temperatures than the Draper point but a material with this property has never been proven to exist. Allanite and gadolinite are examples of minerals which have been claimed to exhibit true pyrognomic properties but have since been shown to exhibit thermoluminescence. The term was originally introduced by the German chemist and mineralogist Theodor Scheerer (1813-1873) in 1840, but the phenomenon had been previously observed by William Hyde Wollaston and Jöns Jacob Berzelius. The term is still used today to describe the thermoluminescence exhibited by various metamict minerals.
Wikidata
Pyrognomic
Pyrognomic materials are easily made incandescent. Minerals and metals commonly glow when heated, but those that are pyrognomic glow at much lower temperatures. Allanite and gadolinite are examples of pyrognomic minerals. The term was introduced by the German chemist and mineralogist Theodor Scheerer in 1840, but the phenomenon had been previously observed by William Hyde Wollaston and Jöns Jacob Berzelius.
Chambers 20th Century Dictionary
Pyrognomic
pī-rog-nom′ik, adj. becoming incandescent when heated to a certain degree. [Gr. pyr, fire, gnōmōn, a mark.]
Numerology
Chaldean Numerology
The numerical value of Pyrognomic in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of Pyrognomic in Pythagorean Numerology is: 9
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"Pyrognomic." Definitions.net. STANDS4 LLC, 2024. Web. 28 Apr. 2024. <https://www.definitions.net/definition/Pyrognomic>.
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