criticalityn.

Brit.

/ˌkrɪtᵻˈkalᵻti/, U.S.

/ˌkrɪdəˈkælədi/

Origin: Formed within English, by derivation. Etymons: critical adj., -ity suffix.

Etymology: < critical adj. + -ity suffix.

†a. A critical remark, a criticism. Obsolete.Apparently an isolated use.

ΚΠ

1758 T. Gray Let. 28 Nov. in Corr. (1971) II. 599 [I] hope to dispatch you a packet with my criticalities entire.

b. Critical or judgemental nature. Also: critical thought.

ΚΠ

1763 H. Dalrymple Rodondo: Canto II 40 There is a Quality Denominated Criticality.—A Kind of captious, snarling Vice, Which proves Men not so wise as nice.

1776 Gazetteer & New Daily Advertiser 3 July 1/4 It appears to me from the singular criticality of his remarks, that he is a man of extraordinary penetration, and of superior dignity.

1922 Catholic World Jan. 463 The habitual attitude of the loyal citizen is that of sympathetic faith, not that of criticality and distrust.

1989 Jerusalem Post (Nexis) 9 May They viewed the decisions and actions of the Israeli commanders and troops with a lack of criticality (and discernment) bordering on the adulatory.

†a. Irish English. A critical moment. Obsolete.Apparently only in the works of William Carleton.

ΚΠ

1830 W. Carleton Traits & Stories Irish Peasantry I. 274 At this criticality, every eye was turned from the corpse to the murderer.

1830 W. Carleton Traits & Stories Irish Peasantry I. 89 Jack could have spitted any body for coming to disturb him at such a criticality.

b. Decisive importance with regard to the outcome.

ΚΠ

1843 C. G. F. Gore Mod. Chivalry I. vi. 209 Nay, the criticality of the positions into which it is enabled to thrust its sons, engender at least the semblance of greatness.

1852 Southern Lit. Messenger Jan. 21/2 Each one of us feels at once the criticality of the situation.

2009 N.Y. Times (National ed.) 24 Aug. a8/2 I'm certainly aware of the criticality of support of the American people for this war and in fact, any war.

3. Nuclear Physics. The state of a nuclear reactor or fuel that sustains a steady chain reaction. See critical adj. 4b.

ΘΚΠ

the world > matter > physics > atomic nucleus > nuclear fission > [noun] > minimum of fissile material > state of

criticality1946

prompt criticality1954

1946 E. Fermi in Proc. Amer. Philos. Soc. 90 23/2 From this time on work was continued under careful supervision so as to make sure that criticality would not be inadvertently reached without proper precautions.

1956 Sunday Times 14 Oct. 10/2 This miscalculation in the quantity of fuel needed to achieve ‘criticality’ has brought other problems.

2018 R. E. Masterson Introd. Nucl. Reactor Physics i. 51 Although a reactor may initially start its life with much more fuel than it needs to stay critical, this excess fuel is what allows it to operate for long periods of time after initial criticality has been achieved.

This entry has been updated (OED Third Edition, March 2022).

单词	criticality
释义	criticalityn. Brit. /ˌkrɪtᵻˈkalᵻti/, U.S. /ˌkrɪdəˈkælədi/ Origin: Formed within English, by derivation. Etymons: critical adj., -ity suffix. Etymology: < critical adj. + -ity suffix. 1. †a. A critical remark, a criticism. Obsolete.Apparently an isolated use. ΚΠ 1758 T. Gray Let. 28 Nov. in Corr. (1971) II. 599 [I] hope to dispatch you a packet with my criticalities entire. b. Critical or judgemental nature. Also: critical thought. ΚΠ 1763 H. Dalrymple Rodondo: Canto II 40 There is a Quality Denominated Criticality.—A Kind of captious, snarling Vice, Which proves Men not so wise as nice. 1776 Gazetteer & New Daily Advertiser 3 July 1/4 It appears to me from the singular criticality of his remarks, that he is a man of extraordinary penetration, and of superior dignity. 1922 Catholic World Jan. 463 The habitual attitude of the loyal citizen is that of sympathetic faith, not that of criticality and distrust. 1989 Jerusalem Post (Nexis) 9 May They viewed the decisions and actions of the Israeli commanders and troops with a lack of criticality (and discernment) bordering on the adulatory. 2. †a. Irish English. A critical moment. Obsolete.Apparently only in the works of William Carleton. ΚΠ 1830 W. Carleton Traits & Stories Irish Peasantry I. 274 At this criticality, every eye was turned from the corpse to the murderer. 1830 W. Carleton Traits & Stories Irish Peasantry I. 89 Jack could have spitted any body for coming to disturb him at such a criticality. b. Decisive importance with regard to the outcome. ΚΠ 1843 C. G. F. Gore Mod. Chivalry I. vi. 209 Nay, the criticality of the positions into which it is enabled to thrust its sons, engender at least the semblance of greatness. 1852 Southern Lit. Messenger Jan. 21/2 Each one of us feels at once the criticality of the situation. 2009 N.Y. Times (National ed.) 24 Aug. a8/2 I'm certainly aware of the criticality of support of the American people for this war and in fact, any war. 3. Nuclear Physics. The state of a nuclear reactor or fuel that sustains a steady chain reaction. See critical adj. 4b. ΘΚΠ the world > matter > physics > atomic nucleus > nuclear fission > [noun] > minimum of fissile material > state of criticality1946 prompt criticality1954 1946 E. Fermi in Proc. Amer. Philos. Soc. 90 23/2 From this time on work was continued under careful supervision so as to make sure that criticality would not be inadvertently reached without proper precautions. 1956 Sunday Times 14 Oct. 10/2 This miscalculation in the quantity of fuel needed to achieve ‘criticality’ has brought other problems. 2018 R. E. Masterson Introd. Nucl. Reactor Physics i. 51 Although a reactor may initially start its life with much more fuel than it needs to stay critical, this excess fuel is what allows it to operate for long periods of time after initial criticality has been achieved. This entry has been updated (OED Third Edition, March 2022). < n.1758
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