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单词 pyrometrical
释义

pyrometricaladj.

Brit. /ˌpʌɪrə(ʊ)ˈmɛtrᵻkl/, U.S. /ˌpaɪroʊˈmɛtrək(ə)l/
Origin: Formed within English, by compounding. Etymons: pyro- comb. form, -metrical comb. form.
Etymology: < pyro- comb. form + -metrical comb. form, after pyrometer n. With sense 2. Compare earlier pyrometric adj.
Physics and Engineering.
1. = pyrometric adj. 2. Cf. pyrometer n. 1. Obsolete.
ΚΠ
1791 Philos. Trans. (Royal Soc.) 81 107 The substances employed..for the actual measurement of the bases must have been influenced in their length by pyrometrical and hygrometrical effects.
1803 Philos. Trans. (Royal Soc.) 93 127 And, (similar to what has been observed in pyrometrical experiments,)..these pieces of metal did not, upon the cessation of friction, return precisely to their original size.
2. = pyrometric adj. 1.
ΘΚΠ
the world > matter > properties of materials > temperature > measurement of temperature > [adjective] > specific
pyrometric1800
pyrometrical1818
ebulliometric1935
bathythermographic1952
1818 Trans. Amer. Philos. Soc. 1 167 Mr. Wedgewood found..that the pyrometrical pieces were liable to suffer variable contractions, at the same temperature.
1845 Encycl. Metrop. VIII. 460/2 Pyrometrical beads, technically called trials,..are made in the form of small hoops, of Egyptian black clay.
1912 Proc. Royal Soc. A. 87 452 The main object being to fix for pyrometrical purposes the true temperature corresponding to the ‘black body’ temperature of molten copper.
1991 Proc. SPIE (Internat. Soc. Optical Engin.) 1598 175 There are some commercial laser soldering systems available, using different types of process control, e.g. pyrometrical temperature measurement.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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adj.1791
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