meltdownn.

Brit.

/ˈmɛltdaʊn/, U.S.

/ˈmɛltˌdaʊn/

Origin: Formed within English, by conversion. Etymon: to melt down at melt v.¹ 3c.

Etymology: < to melt down at melt v.¹ 3c.

a. The action or process of melting; (now) spec. liquefaction of the fuel of a nuclear reactor as a result of uncontrolled heating, with the potential to melt the reactor core and shielding.

ΘΚΠ

the world > matter > liquid > making or becoming liquid > action or process of melting > [noun]

meltingeOE

fusion1555

fusing1832

meltdown1919

the world > matter > physics > atomic nucleus > nuclear fission > nuclear fuel > [noun] > process of melting

meltdown1965

1919 Canad. Mining Jrnl. 2 Apr. 208/1 The Carbon Iron Co., coated the sponge made with lime to retard [printed retarol] its oxidation in the transfer and during the melt down in the open hearth furnace.

1937 Ice Cream Trade Jrnl. Mar. 36/1 The Sod. Alg. ice cream melts down cleanly in the mouth... Due to the clean melt-down..a cooler sensation results in the mouth than with gelatin ice cream.

1956 Nucleonics 14 103 (heading) A letter on EBR-I fuel meltdown.

1965 New Scientist 15 Apr. 161/3 Overheated fuel may result in ‘meltdown’ and general contamination of the reactor system.

1975 New Yorker 12 May 98/2 He was worried about loss-of-coolant accidents, core meltdowns, and breaches of containment walls.

1982 V. N. McIntyre Wrath of Khan vi. 142 The damned technicians claimed nothing else but this wretched, corrosive, teratogenic, gamma-emitting poison had a high enough specific heat to protect the engines against meltdown.

2008 B. K. Sovacool Dirty Energy Dilemma i. 36 The Chernobyl meltdown released more than 100 times the radiation than the atom bombs dropped on Nagasaki and Hiroshima.

b. figurative (originally U.S.).

(a) Any uncontrolled and usually disastrous event with far-reaching consequences; a sudden and decisive collapse; (Finance) a rapid drop in the value of a currency, assets, shares, etc.; a crash. Frequently with modifying word.

ΘΚΠ

society > trade and finance > stocks and shares > [noun] > stock-market crisis

shake-out1895

Wall Street crash1929

meltdown1979

the world > action or operation > adversity > calamity or misfortune > [noun] > misfortune or ill-luck > instance of misfortune or ill-luck > dreadful or severe

tragedy1509

calamity1552

disaster1567

fatality1648

stroke1686

catastrophe1748

tragic1847

big one1978

meltdown1979

1979 N.Y. Times 8 Apr. e21/2 The California press, in the argot of the day, is picturing this as the week of Gov. Jerry Brown's political meltdown.

1986 Washington Post 2 June 3/1 They did this mostly, sources say, out of fear of the alternative—a mass fire sale of the EPIC properties. Such a ‘meltdown’, as it was referred to by lawyers on the case, could have had catastrophic repercussions in the nation's mortgage markets.

1988 New Yorker 21 Mar. 25/1 Last October's stock-market collapse..was a ‘market meltdown’. A novelist wrote that his central character's fraying nerves had brought about a ‘mental meltdown’.

1990 Vanity Fair (N.Y.) Aug. 160/1 If women are alienated, homosexuals have reached the meltdown stage.

1992 Financial Times 11 Apr. ii. 2/7 Talk of a meltdown in Japan plunging Wall Street into crisis and the US economy back into recession.

2012 J. Lasley Los Angeles Police Departm. Meltdown iii. 58 The above officer statements suggest clearly that LAPD did endure an organizational meltdown.

(b) colloquial. A loss of control over one's emotions or behaviour; a mental collapse; a tantrum.

ΚΠ

1980 Christian Sci. Monitor 30 June 14/3 The other day David told me if I said one more word about it he would have a meltdown.

1995 G. Burn Fullalove i. 6 I was also only four years away from personal meltdown in 1974, from the ‘spiritual emergency’ (thank you, doctor) that's put me here.

2003 B. Ottinger Tictionary 124 Although Josh never had a meltdown in a store, I have known many children who have.

2009 Guardian 14 Mar. (Guide Suppl.) 5/2 Once we have tired of these A-list meltdowns the caring internet community will then turn them into ‘memes’.

2. A mass of material that has been melted down. rare.

ΘΚΠ

the world > matter > liquid > making or becoming liquid > action or process of melting > [noun] > melted substance > a mass

meltdown1973

1973 Sci. Amer. Aug. 114/2 They recycle..bottles into gemlike necklaces, the meltdown fanned by the bowl bellows of ancient Egypt.

This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).

单词	meltdown
释义	meltdownn. Brit. /ˈmɛltdaʊn/, U.S. /ˈmɛltˌdaʊn/ Origin: Formed within English, by conversion. Etymon: to melt down at melt v.¹ 3c. Etymology: < to melt down at melt v.¹ 3c. 1. a. The action or process of melting; (now) spec. liquefaction of the fuel of a nuclear reactor as a result of uncontrolled heating, with the potential to melt the reactor core and shielding. ΘΚΠ the world > matter > liquid > making or becoming liquid > action or process of melting > [noun] meltingeOE fusion1555 fusing1832 meltdown1919 the world > matter > physics > atomic nucleus > nuclear fission > nuclear fuel > [noun] > process of melting meltdown1965 1919 Canad. Mining Jrnl. 2 Apr. 208/1 The Carbon Iron Co., coated the sponge made with lime to retard [printed retarol] its oxidation in the transfer and during the melt down in the open hearth furnace. 1937 Ice Cream Trade Jrnl. Mar. 36/1 The Sod. Alg. ice cream melts down cleanly in the mouth... Due to the clean melt-down..a cooler sensation results in the mouth than with gelatin ice cream. 1956 Nucleonics 14 103 (heading) A letter on EBR-I fuel meltdown. 1965 New Scientist 15 Apr. 161/3 Overheated fuel may result in ‘meltdown’ and general contamination of the reactor system. 1975 New Yorker 12 May 98/2 He was worried about loss-of-coolant accidents, core meltdowns, and breaches of containment walls. 1982 V. N. McIntyre Wrath of Khan vi. 142 The damned technicians claimed nothing else but this wretched, corrosive, teratogenic, gamma-emitting poison had a high enough specific heat to protect the engines against meltdown. 2008 B. K. Sovacool Dirty Energy Dilemma i. 36 The Chernobyl meltdown released more than 100 times the radiation than the atom bombs dropped on Nagasaki and Hiroshima. b. figurative (originally U.S.). (a) Any uncontrolled and usually disastrous event with far-reaching consequences; a sudden and decisive collapse; (Finance) a rapid drop in the value of a currency, assets, shares, etc.; a crash. Frequently with modifying word. ΘΚΠ society > trade and finance > stocks and shares > [noun] > stock-market crisis shake-out1895 Wall Street crash1929 meltdown1979 the world > action or operation > adversity > calamity or misfortune > [noun] > misfortune or ill-luck > instance of misfortune or ill-luck > dreadful or severe tragedy1509 calamity1552 disaster1567 fatality1648 stroke1686 catastrophe1748 tragic1847 big one1978 meltdown1979 1979 N.Y. Times 8 Apr. e21/2 The California press, in the argot of the day, is picturing this as the week of Gov. Jerry Brown's political meltdown. 1986 Washington Post 2 June 3/1 They did this mostly, sources say, out of fear of the alternative—a mass fire sale of the EPIC properties. Such a ‘meltdown’, as it was referred to by lawyers on the case, could have had catastrophic repercussions in the nation's mortgage markets. 1988 New Yorker 21 Mar. 25/1 Last October's stock-market collapse..was a ‘market meltdown’. A novelist wrote that his central character's fraying nerves had brought about a ‘mental meltdown’. 1990 Vanity Fair (N.Y.) Aug. 160/1 If women are alienated, homosexuals have reached the meltdown stage. 1992 Financial Times 11 Apr. ii. 2/7 Talk of a meltdown in Japan plunging Wall Street into crisis and the US economy back into recession. 2012 J. Lasley Los Angeles Police Departm. Meltdown iii. 58 The above officer statements suggest clearly that LAPD did endure an organizational meltdown. (b) colloquial. A loss of control over one's emotions or behaviour; a mental collapse; a tantrum. ΚΠ 1980 Christian Sci. Monitor 30 June 14/3 The other day David told me if I said one more word about it he would have a meltdown. 1995 G. Burn Fullalove i. 6 I was also only four years away from personal meltdown in 1974, from the ‘spiritual emergency’ (thank you, doctor) that's put me here. 2003 B. Ottinger Tictionary 124 Although Josh never had a meltdown in a store, I have known many children who have. 2009 Guardian 14 Mar. (Guide Suppl.) 5/2 Once we have tired of these A-list meltdowns the caring internet community will then turn them into ‘memes’. 2. A mass of material that has been melted down. rare. ΘΚΠ the world > matter > liquid > making or becoming liquid > action or process of melting > [noun] > melted substance > a mass meltdown1973 1973 Sci. Amer. Aug. 114/2 They recycle..bottles into gemlike necklaces, the meltdown fanned by the bowl bellows of ancient Egypt. This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < n.1919
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