red heatn.

Brit.

/ˌrɛd ˈhiːt/, U.S.

/ˌrɛd ˈhit/

Forms: see red adj. and n. and heat n.

Origin: Formed within English, by compounding. Etymons: red adj., heat n.

Etymology: < red adj. + heat n. In sense 2 after red-hot adj.

†1. Redness and heat of the eye. Obsolete. rare.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of eye > [noun] > other disorders of eye

holks1513

red heat1527

hypopyon1706

photophobia1772

buphthalmos1821

ophthalmoplegia1835

periorbitis1839

ophthalmoplegy1848

pinguecule1858

choked disc1870

optic neuritis1873

cyclitis1879

papillitis1879

Leber's disease1890

ophthalmopathy1897

papilloedema1908

sanpaku1963

1527 L. Andrewe tr. H. Brunschwig Vertuose Boke Distyllacyon sig. Di Agaynst the rede hete & stytches in the iyen.

2. Heat sufficient to make something red-hot; the state or condition of being red-hot; the temperature at which an object or substance is red-hot (usually 500–1000°C). Also figurative.

ΘΚΠ

the world > matter > properties of materials > temperature > heat > [noun] > specific degree of heat

red heatc1540

fury fire1644

adustness1652

white heat1664

blood heat1678

welding heat1710

black heat1800

welding1842

boiling-heat1846

red-hot1865

melting heat1868

c1540 (?a1400) Gest Historiale Destr. Troy 912 He [sc. the dragon] rut out roidly with a rede hete Þat al blasit the bent on a breme lowe.

1633 P. Fletcher Purple Island vii. lvii. 99 In his face red heat, and ashie cold Strove which should paint revenge in proper colours.

1686 R. Plot Nat. Hist. Staffs. iv. 161 It is so brittle it would crack in the red-heat.

1702 T. Savery Miners Friend 71 A white Heat will melt Copper, and a red Heat, and sudden cooling it again, will Scale the Copper.

1768 J. Watt Let. 15 Feb. in E. Robinson & D. McKie Partners in Sci. (1970) 9 I..could never heat the part of the furnace above the fuel better than a bold red heat.

1807 T. Thomson Syst. Chem. (ed. 3) II. 209 He dried a quantity of crystallized carbonate of soda in a red heat.

1832 D. Brewster Lett. Nat. Magic xiii. 319 This vapour, being consumed without flame, keeps the wick at its red-heat.

1886 A. Winchell Walks & Talks in Geol. Field 134 They could only be separated by bringing the residue to a red-heat.

1898 T. Watts-Dunton Aylwin (1900) 45/2 I awoke in about an hour with red-heat at my brain.

1931 V. Woolf Waves 160 It [sc. the sun] struck upon the hard sand, and the rocks became furnaces of red heat.

1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxix. 658 Steel is heated to a brilliant red heat, and afterwards quenched by plunging it into water.

1986 E. Hall in A. Limon et al. Home Owner Man. (ed. 2) iii. xii. 490 The metal of the tube may need to be annealed—heated to a red heat to change the temper of the copper from half-hard to soft.

2000 Internet Money No. 15. 64/2 All of us have felt the red heat of frustration as we wait for a site overloaded with images and flashy graphics to download.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	red heat
释义	red heatn. Brit. /ˌrɛd ˈhiːt/, U.S. /ˌrɛd ˈhit/ Forms: see red adj. and n. and heat n. Origin: Formed within English, by compounding. Etymons: red adj., heat n. Etymology: < red adj. + heat n. In sense 2 after red-hot adj. †1. Redness and heat of the eye. Obsolete. rare. ΘΚΠ the world > health and disease > ill health > a disease > disorders of eye > [noun] > other disorders of eye holks1513 red heat1527 hypopyon1706 photophobia1772 buphthalmos1821 ophthalmoplegia1835 periorbitis1839 ophthalmoplegy1848 pinguecule1858 choked disc1870 optic neuritis1873 cyclitis1879 papillitis1879 Leber's disease1890 ophthalmopathy1897 papilloedema1908 sanpaku1963 1527 L. Andrewe tr. H. Brunschwig Vertuose Boke Distyllacyon sig. Di Agaynst the rede hete & stytches in the iyen. 2. Heat sufficient to make something red-hot; the state or condition of being red-hot; the temperature at which an object or substance is red-hot (usually 500–1000°C). Also figurative. ΘΚΠ the world > matter > properties of materials > temperature > heat > [noun] > specific degree of heat red heatc1540 fury fire1644 adustness1652 white heat1664 blood heat1678 welding heat1710 black heat1800 welding1842 boiling-heat1846 red-hot1865 melting heat1868 c1540 (?a1400) Gest Historiale Destr. Troy 912 He [sc. the dragon] rut out roidly with a rede hete Þat al blasit the bent on a breme lowe. 1633 P. Fletcher Purple Island vii. lvii. 99 In his face red heat, and ashie cold Strove which should paint revenge in proper colours. 1686 R. Plot Nat. Hist. Staffs. iv. 161 It is so brittle it would crack in the red-heat. 1702 T. Savery Miners Friend 71 A white Heat will melt Copper, and a red Heat, and sudden cooling it again, will Scale the Copper. 1768 J. Watt Let. 15 Feb. in E. Robinson & D. McKie Partners in Sci. (1970) 9 I..could never heat the part of the furnace above the fuel better than a bold red heat. 1807 T. Thomson Syst. Chem. (ed. 3) II. 209 He dried a quantity of crystallized carbonate of soda in a red heat. 1832 D. Brewster Lett. Nat. Magic xiii. 319 This vapour, being consumed without flame, keeps the wick at its red-heat. 1886 A. Winchell Walks & Talks in Geol. Field 134 They could only be separated by bringing the residue to a red-heat. 1898 T. Watts-Dunton Aylwin (1900) 45/2 I awoke in about an hour with red-heat at my brain. 1931 V. Woolf Waves 160 It [sc. the sun] struck upon the hard sand, and the rocks became furnaces of red heat. 1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxix. 658 Steel is heated to a brilliant red heat, and afterwards quenched by plunging it into water. 1986 E. Hall in A. Limon et al. Home Owner Man. (ed. 2) iii. xii. 490 The metal of the tube may need to be annealed—heated to a red heat to change the temper of the copper from half-hard to soft. 2000 Internet Money No. 15. 64/2 All of us have felt the red heat of frustration as we wait for a site overloaded with images and flashy graphics to download. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1527
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