pyrognosticadj.

Brit.

/ˌpʌɪrə(ʊ)ɡˈnɒstɪk/, U.S.

/ˌpaɪroʊɡˈnɑstɪk/

Origin: Formed within English, by compounding. Etymons: pyro- comb. form, gnostic adj.

Etymology: < pyro- comb. form + gnostic adj., after diagnostic adj., geognostic adj., etc.

Mineralogy. Now rare.

Designating the characteristics of a mineral that are exhibited when it is heated under experimental conditions; of or relating to the investigation of such characteristics.

ΚΠ

1849 J. D. Dana U.S. Exploring Exped.: Geol. iii. 207 Pyrognostic Characters.—In an open tube gives off a small quantity of water.

1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) v. 76 Bromel, a French mineralogist,..being the first who classified mineral substances according to their pyrognostic qualities.

1870 Philos. Trans. (Royal Soc.) 160 201 Mr. Sorby has made the pyrognostic characters of this element a special study.

1959 L. G. Berry & B. Mason Mineralogy v. 261 Other useful pyrognostic (i.e., heating) tests are those using closed and open tubes.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	pyrognostic
释义	pyrognosticadj. Brit. /ˌpʌɪrə(ʊ)ɡˈnɒstɪk/, U.S. /ˌpaɪroʊɡˈnɑstɪk/ Origin: Formed within English, by compounding. Etymons: pyro- comb. form, gnostic adj. Etymology: < pyro- comb. form + gnostic adj., after diagnostic adj., geognostic adj., etc. Mineralogy. Now rare. Designating the characteristics of a mineral that are exhibited when it is heated under experimental conditions; of or relating to the investigation of such characteristics. ΚΠ 1849 J. D. Dana U.S. Exploring Exped.: Geol. iii. 207 Pyrognostic Characters.—In an open tube gives off a small quantity of water. 1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) v. 76 Bromel, a French mineralogist,..being the first who classified mineral substances according to their pyrognostic qualities. 1870 Philos. Trans. (Royal Soc.) 160 201 Mr. Sorby has made the pyrognostic characters of this element a special study. 1959 L. G. Berry & B. Mason Mineralogy v. 261 Other useful pyrognostic (i.e., heating) tests are those using closed and open tubes. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < adj.1849
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