Eurekaint.n.

/jʊəˈriːkə/

Etymology: < Greek εὕρηκα, 1st person singular perfect of εὑρίσκειν to find. The correct spelling heureka is rare.

1. The exclamation (‘I have found it’) uttered by Archimedes when he discovered the means of determining (by specific gravity) the proportion of base metal in Hiero's golden crown. (See Vitruvius Arch. IX. iii, Plutarch Mor. (Didot) 1338.) Hence allusively, an exulting exclamation at having made a discovery.

ΘΚΠ

the mind > attention and judgement > discovery > realization or discovery [interjection]

ahaa1400

ah1591

Eureka1818

the world > action or operation > endeavour > searching or seeking > finding or discovery > exclamation on making discovery [interjection]

ah1591

Eureka1818

1570 J. Dee in H. Billingsley tr. Euclid Elements Geom. Math. Præf. sig. cij For this, may I (with ioy) say, ΕΥΡΗΚΑ.]

1603 P. Holland tr. Plutarch Morals 590 [Archimedes] crying out, Heureca.

1658 tr. G. della Porta Nat. Magick xviii. viii. 384 We have gone beyond Archimedes his Eureka.

1742 H. Fielding Joseph Andrews (ed. 2) I. ii. xiii. 267 Adams..returned overjoyed..crying out ‘Eureka’ [1742 (ed. 1) Ευρηκα; 1743 (ed. 3) Heureka.]

1806 J. Grahame Birds Scotl. 28 The Syracusan's voice did not exclaim The grand Heureka with more rapturous joy.

1818 Ld. Byron Childe Harold: Canto IV lxxxi. 43 We clap Our hands, and cry ‘Eureka!’

1862 J. H. Burton Book-hunter i. 34 A triumphant cry of Eureka! calls me to his place of rest.

1877 F. W. Farrar In Days of Youth (ed. 4) viii. 73 That great Eureka,—‘We have found the Messiah’.

2. A discovery justifying self-congratulation. Often used attributively by advertising tradesmen in the names given to special articles of manufacture.

ΚΠ

1853 Advt. in Athenæum 29 Jan. 151 Eureka shirts.

1854 C. D. Badham Prose Halieutics 233 A recent addition to the long list of modern Mediterranean eurekas.

3. The proprietary name of an alloy of copper and nickel used for electrical filament and resistance wire. Also attributive.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > other copper alloys

tombac1602

blanched copper1621

orichalcum1646

cock metal1766

gold bronze1785

bidri1794

tumbaga1860

Aich's metal1861

sterro-metal1865

talmi1868

Abyssinian gold1869

delta-metal1883

Tobin bronze1891

manganin1894

Eureka1914

1914 Trade Marks Jrnl. 21 Jan. 85 Eureka. Electric Conduits and Union Joints and Fittings therefor... John Birch & Sons..Manufacturers.

1915 London, Edinb. & Dublin Philos. Mag. 6th Ser. 29 368 Of the following metals and alloys all..gave a positive emission..platinoid, eureka, tinned copper, and ‘galvanized’ iron.

1930 Engineering 28 Nov. 672/1 Winding, for which 47-gauge Eureka wire is used.

1939 Trade Marks Jrnl. 2 Aug. 1070 Eureka... Uncovered copper-nickel electrical resistance wire. The London Electric Wire Company and Smiths Limited..Manufacturers.

1943 Electronic Engin. 16 78 The heater wire is generally made of eureka or a copper nickel alloy.

Draft additions December 2004

Eureka moment n. (frequently with lower-case initial) an instant in which a scientific discovery is made or a breakthrough occurs; a moment of inspiration; (in extended use) an exciting or significant experience; cf. moment n. 1b.

ΚΠ

1906 A. H. N. Baron tr. T. Ribot Ess. on Creative Imagination vii. 302 A fixed and besetting idea, trial followed by failure, the decisive moment of Eureka! then the inner revelation manifests itself outwardly.]

1920 G. S. Hall Morale ii. 31 Its [sc. the world's] great achievements..have been the product of exuberant, euphorious, and eureka moments.

1976 Newsweek (Nexis) 26 Jan. 78 The rarest and most exciting thing in moviegoing is the Eureka moment when an artist breaks through.

2002 Wired Oct. 106/1 Thresher's team spent several years modeling different population-busting scenarios before they had their eureka moment.

Draft additions April 2011

Eureka flag n. [ < the name of the Eureka Stockade in Ballarat, Victoria, site of the 1854 rebellion during which the flag was first used] Australian a blue flag bearing a white cross with a white star at the end of each arm and in the centre (in a stylized depiction of the constellation Crux); = Southern Cross n. 2.In quot. 1896 referring to the actual historic flag raised at the Eureka Stockade.

ΘΚΠ

society > communication > indication > insignia > standard > [noun] > flag > flags of other specific nations

Red Ensign1828

Southern Cross1855

sun flag1882

Eureka flag1896

Vierkleur1900

Blue Ensign1919

1896 Ballarat (Victoria) Courier 1 May 4/5 He enclosed to me a fragment of the Eureka Flag, given to Mrs Clendinning by Dr Alfred Carr who was doing..general medical duties of the camp at that time.

1948 Age (Melbourne) 6 Dec. 3/3 At the Yarra Bank the Eureka flag was hoisted, and Communist speakers addressed a large crowd.

1977 Guardian 11 Mar. 12/7 The Brisbane protesters were waving Eureka flags, which are very pretty, blue and white, with the stars of the Southern Cross upon them.

2007 B. Pascoe Convincing Ground x. 111 There was a time when I would have taken the Southern Cross as a national emblem but after reading my country's history it would be anathema to salute the Eureka flag because it ignores too much.

This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2022).

单词	eureka
释义	Eurekaint.n. /jʊəˈriːkə/ Etymology: < Greek εὕρηκα, 1st person singular perfect of εὑρίσκειν to find. The correct spelling heureka is rare. 1. The exclamation (‘I have found it’) uttered by Archimedes when he discovered the means of determining (by specific gravity) the proportion of base metal in Hiero's golden crown. (See Vitruvius Arch. IX. iii, Plutarch Mor. (Didot) 1338.) Hence allusively, an exulting exclamation at having made a discovery. ΘΚΠ the mind > attention and judgement > discovery > realization or discovery [interjection] ahaa1400 ah1591 Eureka1818 the world > action or operation > endeavour > searching or seeking > finding or discovery > exclamation on making discovery [interjection] ah1591 Eureka1818 1570 J. Dee in H. Billingsley tr. Euclid Elements Geom. Math. Præf. sig. cij For this, may I (with ioy) say, ΕΥΡΗΚΑ.] 1603 P. Holland tr. Plutarch Morals 590 [Archimedes] crying out, Heureca. 1658 tr. G. della Porta Nat. Magick xviii. viii. 384 We have gone beyond Archimedes his Eureka. 1742 H. Fielding Joseph Andrews (ed. 2) I. ii. xiii. 267 Adams..returned overjoyed..crying out ‘Eureka’ [1742 (ed. 1) Ευρηκα; 1743 (ed. 3) Heureka.] 1806 J. Grahame Birds Scotl. 28 The Syracusan's voice did not exclaim The grand Heureka with more rapturous joy. 1818 Ld. Byron Childe Harold: Canto IV lxxxi. 43 We clap Our hands, and cry ‘Eureka!’ 1862 J. H. Burton Book-hunter i. 34 A triumphant cry of Eureka! calls me to his place of rest. 1877 F. W. Farrar In Days of Youth (ed. 4) viii. 73 That great Eureka,—‘We have found the Messiah’. 2. A discovery justifying self-congratulation. Often used attributively by advertising tradesmen in the names given to special articles of manufacture. ΚΠ 1853 Advt. in Athenæum 29 Jan. 151 Eureka shirts. 1854 C. D. Badham Prose Halieutics 233 A recent addition to the long list of modern Mediterranean eurekas. 3. The proprietary name of an alloy of copper and nickel used for electrical filament and resistance wire. Also attributive. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > other copper alloys tombac1602 blanched copper1621 orichalcum1646 cock metal1766 gold bronze1785 bidri1794 tumbaga1860 Aich's metal1861 sterro-metal1865 talmi1868 Abyssinian gold1869 delta-metal1883 Tobin bronze1891 manganin1894 Eureka1914 1914 Trade Marks Jrnl. 21 Jan. 85 Eureka. Electric Conduits and Union Joints and Fittings therefor... John Birch & Sons..Manufacturers. 1915 London, Edinb. & Dublin Philos. Mag. 6th Ser. 29 368 Of the following metals and alloys all..gave a positive emission..platinoid, eureka, tinned copper, and ‘galvanized’ iron. 1930 Engineering 28 Nov. 672/1 Winding, for which 47-gauge Eureka wire is used. 1939 Trade Marks Jrnl. 2 Aug. 1070 Eureka... Uncovered copper-nickel electrical resistance wire. The London Electric Wire Company and Smiths Limited..Manufacturers. 1943 Electronic Engin. 16 78 The heater wire is generally made of eureka or a copper nickel alloy. Draft additions December 2004 Eureka moment n. (frequently with lower-case initial) an instant in which a scientific discovery is made or a breakthrough occurs; a moment of inspiration; (in extended use) an exciting or significant experience; cf. moment n. 1b. ΚΠ 1906 A. H. N. Baron tr. T. Ribot Ess. on Creative Imagination vii. 302 A fixed and besetting idea, trial followed by failure, the decisive moment of Eureka! then the inner revelation manifests itself outwardly.] 1920 G. S. Hall Morale ii. 31 Its [sc. the world's] great achievements..have been the product of exuberant, euphorious, and eureka moments. 1976 Newsweek (Nexis) 26 Jan. 78 The rarest and most exciting thing in moviegoing is the Eureka moment when an artist breaks through. 2002 Wired Oct. 106/1 Thresher's team spent several years modeling different population-busting scenarios before they had their eureka moment. Draft additions April 2011 Eureka flag n. [ < the name of the Eureka Stockade in Ballarat, Victoria, site of the 1854 rebellion during which the flag was first used] Australian a blue flag bearing a white cross with a white star at the end of each arm and in the centre (in a stylized depiction of the constellation Crux); = Southern Cross n. 2.In quot. 1896 referring to the actual historic flag raised at the Eureka Stockade. ΘΚΠ society > communication > indication > insignia > standard > [noun] > flag > flags of other specific nations Red Ensign1828 Southern Cross1855 sun flag1882 Eureka flag1896 Vierkleur1900 Blue Ensign1919 1896 Ballarat (Victoria) Courier 1 May 4/5 He enclosed to me a fragment of the Eureka Flag, given to Mrs Clendinning by Dr Alfred Carr who was doing..general medical duties of the camp at that time. 1948 Age (Melbourne) 6 Dec. 3/3 At the Yarra Bank the Eureka flag was hoisted, and Communist speakers addressed a large crowd. 1977 Guardian 11 Mar. 12/7 The Brisbane protesters were waving Eureka flags, which are very pretty, blue and white, with the stars of the Southern Cross upon them. 2007 B. Pascoe Convincing Ground x. 111 There was a time when I would have taken the Southern Cross as a national emblem but after reading my country's history it would be anathema to salute the Eureka flag because it ignores too much. This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2022). < int.n.1603
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