lifetimen.adj.

Brit.

/ˈlʌɪftʌɪm/, U.S.

/ˈlaɪfˌtaɪm/

Forms:

α. see life n. and time n., int., and conj.; also Scottish pre-1700 lyftetymes (plural, transmission error).

β. Middle English liuetime, 1600s livetime; Scottish pre-1700 livetime, pre-1700 lyvetyme, pre-1700 lywetyme.

Origin: Formed within English, by compounding. Etymons: life n., time n.

Etymology: < life n. + time n. Compare Old Icelandic lífstími . Compare also Middle Low German līftīt . Compare earlier life's time n. at life n. Compounds 4b. Compare also earlier life-day n.With β. forms see discussion at life n. (compare β. forms at life n.). In later use (compare quot. 1642 at sense A. 1) perhaps with alteration of the first element after live adj.¹

A. n.

1. The duration of a person's (animal's, etc.) life; the period of time over which a person's life extends. Frequently in adverbial phrase in (during, etc.) one's lifetime. See also a legend in one's (own) lifetime at legend n. 7a, once in a lifetime at once adv., conj., adj., and n. Phrases 10.

ΘΚΠ

the world > life > source or principle of life > [noun] > course or span of life

life-dayOE

year-daysOE

timeOE

dayOE

lifeOE

life's timeOE

livelihoodOE

yearOE

lifetimea1300

life-whilea1300

for (also to) term of (a person's) lifea1325

coursec1384

livingc1390

voyage1390

agea1398

life's dayc1425

thread1447

racea1450

living daysc1450

natural life1461

lifeness1534

twist1568

leasec1595

span1599

clew1615

marcha1625

peregrination1653

clue1684

stamen1701

life term1739

innings1772

lifelong1814

pass-through1876

inning1885

natural1891

life cycle1915

puff1967

a1300 (c1275) Physiologus (1991) l. 514 Wu laȝelike ȝe [sc. ðe turtre] holdeð luue al hire lif-time.

a1375 (c1350) William of Palerne (1867) l. 999 I graunt him greþli..mi loue for euer al mi lif time.

1480 W. Caxton Chron. Eng. ccxxxii. 251 Alle these forsayd thynges trewelych for to kepe..alle his lyf time.

1553 R. Eden in tr. S. Münster Treat. Newe India Ded. sig. aaij In hys lyfe tyme by hys owne marcial affayres.

c1580 ( tr. Bk. Alexander (1925) I. i. l. 2760 Neuer his lif-tyme to that day Was he chaissit out of ane stour.

1642 tr. J. Perkins Profitable Bk. viii. §571. 248 Cause them to be given or delivered unto them in their live times.

1732 T. Lediard tr. J. Terrasson Life Sethos II. vii. 80 Unless they..restore..them to their favour in their life-time.

1793 T. Pennant Lit. Life 41 None of these books are to be printed in my life-time.

1860 N. Hawthorne Marble Faun II. iv. 48 If there were one of those friends whose lifetime was twisted with your own, I am enough of a fatalist to feel assured that [etc.].

1875 B. Jowett in tr. Plato Dialogues (ed. 2) III. 183 A lifetime might be passed happily in such pursuits.

1925 W. Williams in B. C. Williams O. Henry Prize Stories of 1925 (1926) 46 For half his lifetime he had been an undefeated fencing champion, also victor in a dozen duels.

1963 W. Blunt Of Flowers & Village 46 The japonica has had no less than five different names during my lifetime.

2007 B. Kingsolver Animal, Veg., Miracle viii. 114 In my lifetime Kentucky farmers have mostly had the options of going broke, or going six ways to Sunday for the sake of staying solvent.

a. The duration of something's existence or usefulness; = life n. 10a.

ΘΚΠ

the world > time > duration > [noun] > lifespan (of material things, etc.)

age1535

life1703

lifetime1822

longevity1842

lifespan1898

natural life1900

1822 W. Hazlitt in Liberal Dec. 231 The great world has been doing little else but playing at make-believe all its life-time.

1858 N. Hawthorne Fr. & Ital. Jrnls. I. 167 Durable for whatever may be the lifetime of the world.

1884 J. M. Swank Hist. Manuf. Iron 308 During its life-time about 1,250,000 trains and a like number of detached engines and tenders passed over it.

1937 Amer. Home Apr. 41/3 It is wise to remember that the lifetime of a frame house usually spans one or two serious periods of financial depression.

1965 H. I. Ansoff Corporate Strategy (1968) ii. 24 If it turns out that the lifetime of some projects exceeds the budget period, the period is extended for purpose of analysis.

1974 Daily Tel. 17 Apr. 17/4 There is no possibility of action on the lines of the group's proposals in the lifetime of the present Parliament.

2007 Dr. Dobb's Jrnl. Nov. 57/1 This code simply protects the data structure using the same mutex for its entire shared lifetime.

b. Physics. Also mean lifetime. The average duration of existence of the members of an exponentially decaying population of identical particles or states (equal to the period in which the population decreases by a factor of e). Cf. half-life n. 2a, life n. 10b.

ΘΚΠ

the world > matter > physics > atomic nucleus > radioactive isotope > radioactive nuclide > [noun] > average duration

life1903

mean lifetime1909

1909 Munsey's Mag. 41 399/2 The actual lifetime of radium is unknown, but after fifteen hundred years only half of the original mass would remain.

1939 Physical Rev. 55 506/1 The lifetime for a mesotron at rest has been estimated..to be of the order 2−4 × 10⁻⁶ sec.

1950 Physical Rev. 77 153/1 (heading) Lifetimes of mercury and potassium atoms in excited states.

1973 L. J. Tassie Physics Elem. Particles vi. 51 A typical strange particle is the Λ°, an uncharged particle which decays with a mean lifetime of 2·5 × 10−¹⁰ s.

1993 New Scientist 13 Mar. 41/2 Particle physicists are also interested in this quantity [sc. half-life], but for historical reasons they talk in terms of a related number called the lifetime, which is the time it takes for the number of particles in the original sample to reduce to 1/e of their original number.

2002 F. Close et al. Particle Odyssey viii. 150 Nowadays, almost every experiment has a silicon ‘vertex’ detector, which can reveal the ‘vertices’ where tracks diverge as short-lived particles decay to those with longer lifetimes.

3. In extended use: a very long period of time.

ΘΚΠ

the world > time > [noun] > stretch, period, or portion of time

tidea900

while971

fristOE

stemOE

throwOE

timeOE

selea1250

piecec1300

termc1300

stagea1325

whilesc1330

space?a1400

racec1400

spacec1405

termine1420

parodya1425

timea1425

continuancec1440

thrallc1450

espace1483

space of timec1500

tracta1513

stead1596

reach1654

amidst1664

stretch1698

spell1728

track1835

lifetime1875

time slice1938

1875 Sioux County (Iowa) Herald 14 Oct. 4/2 Men are not like woman, and will not wait a life-time without knowing their fate when it can be decided by a single word.

1928 Iowa Recorder 12 Sept. 5/2 $5 buys a twelve foot pressure treated hog trough that will last you a ‘lifetime’.

1959 W. Golding Free Fall iii. 70 I got complications, had ups and downs. I was a lifetime in that ward.

2008 Daily News of Los Angeles (Nexis) 1 Feb. c1 A lot of guys wait a lifetime to go to the Super Bowl.

B. adj. (attributive).

Lasting for the duration of a life; made or achieved during one's life.

ΘΚΠ

the world > life > source or principle of life > [adjective] > course or span of life > for duration of a lifetime

lifelong1613

livelong1788

forever1879

womb-to-tomb1947

lifetime1962

1909 Sat. Evening Post 16 Jan. 7/3 I've nosed into the paddock and made a lifetime hit with stable boys, jockeys, trainers, clockers and even owners.

1937 Amer. Home Apr. 4/1 (advt.) Everdur means lifetime freedom from rust and consequent replacement expense.

1943 W. Stegner Big Rock Candy Mountain i. 53 Just because Jud gives her a little whirl, she thinks she's got a lifetime lease on him.

1962 Amer. Speech 37 16 New England did contribute the largest number of white lifetime migrants to the state of New York.

1974 Country Life 2 May 1065/2 The gifts tax..would be a tax on lifetime gifts.

2006 N.Y. Times (National ed.) 11 Apr. e5/1 Annuitization is the only way you can get a lifetime guarantee that you won't run out of money.

Phrases

P1. of a lifetime: (as postmodifier) implying (often hyperbolically) that an event, situation, or thing will never be equalled or repeated. Frequently in the chance of a lifetime.

ΘΚΠ

the world > relative properties > kind or sort > individual character or quality > quality of being special or extraordinary > especially or particularly [phrase] > incomparable or unique

without compare1621

of a lifetime1846

sans-pareil1962

1846 S. Ellis Temper & Temperament II. vi. 11 He pitied her from his heart, to think she should be so blind to her own interest as to throw away the one chance of a lifetime—and for what?

1899 A. Conan Doyle Confessions in Duet 133 There are all..degrees of love, some just the whim of a moment, and others the passion of a lifetime.

1929 P. G. Wodehouse Mr. Mulliner Speaking ix. 314 It must be a cocktail. The cocktail of a lifetime.

1930 K. S. Prichard Haxby's Circus iii. 41 She's the chance of a life-time... The biggest bloomin' monty ever started on a racecourse.

1943 K. Tynan Let. 10 Oct. (1994) i. 11 Tonight I met the Girl of a Lifetime.

1954 W. S. Burroughs Let. Oct. (1993) 234 So I was cheated out of the fix of a lifetime.

1979 P. O'Connor Into Strong City xvii. 64 I was having the ride of a lifetime, frantically bumping it into a capacious Rubens blonde.

2000 J. Harvey Gimme Gimme Gimme (2002) 102/1 Watch this, watch this. I'm going to give the performance of a life time, watch.

P2. all in a (also one's) lifetime: implying resignation to whatever happens. Now rare.

ΘΚΠ

the world > action or operation > difficulty > opposition > absence of resistance > implying resignation to whatever happens [phrase]

all in a (also one's) lifetime1849

1849 N. Kingsley Diary (1914) 44 My consolation is that it is all in my lifetime and thus make myself quite contented.

1898 F. P. Dunne Mr. Dooley in Peace & War 187 Well, tubby sure, 'tis thryin' to be dhrivin' a coal wagon or a sthreet-car; but 'tis all in a lifetime.

P3. the surprise of one's lifetime (see surprise n. 4b).

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

单词	lifetime
释义	lifetimen.adj. Brit. /ˈlʌɪftʌɪm/, U.S. /ˈlaɪfˌtaɪm/ Forms: α. see life n. and time n., int., and conj.; also Scottish pre-1700 lyftetymes (plural, transmission error). β. Middle English liuetime, 1600s livetime; Scottish pre-1700 livetime, pre-1700 lyvetyme, pre-1700 lywetyme. Origin: Formed within English, by compounding. Etymons: life n., time n. Etymology: < life n. + time n. Compare Old Icelandic lífstími . Compare also Middle Low German līftīt . Compare earlier life's time n. at life n. Compounds 4b. Compare also earlier life-day n.With β. forms see discussion at life n. (compare β. forms at life n.). In later use (compare quot. 1642 at sense A. 1) perhaps with alteration of the first element after live adj.¹ A. n. 1. The duration of a person's (animal's, etc.) life; the period of time over which a person's life extends. Frequently in adverbial phrase in (during, etc.) one's lifetime. See also a legend in one's (own) lifetime at legend n. 7a, once in a lifetime at once adv., conj., adj., and n. Phrases 10. ΘΚΠ the world > life > source or principle of life > [noun] > course or span of life life-dayOE year-daysOE timeOE dayOE lifeOE life's timeOE livelihoodOE yearOE lifetimea1300 life-whilea1300 for (also to) term of (a person's) lifea1325 coursec1384 livingc1390 voyage1390 agea1398 life's dayc1425 thread1447 racea1450 living daysc1450 natural life1461 lifeness1534 twist1568 leasec1595 span1599 clew1615 marcha1625 peregrination1653 clue1684 stamen1701 life term1739 innings1772 lifelong1814 pass-through1876 inning1885 natural1891 life cycle1915 puff1967 a1300 (c1275) Physiologus (1991) l. 514 Wu laȝelike ȝe [sc. ðe turtre] holdeð luue al hire lif-time. a1375 (c1350) William of Palerne (1867) l. 999 I graunt him greþli..mi loue for euer al mi lif time. 1480 W. Caxton Chron. Eng. ccxxxii. 251 Alle these forsayd thynges trewelych for to kepe..alle his lyf time. 1553 R. Eden in tr. S. Münster Treat. Newe India Ded. sig. aaij In hys lyfe tyme by hys owne marcial affayres. c1580 ( tr. Bk. Alexander (1925) I. i. l. 2760 Neuer his lif-tyme to that day Was he chaissit out of ane stour. 1642 tr. J. Perkins Profitable Bk. viii. §571. 248 Cause them to be given or delivered unto them in their live times. 1732 T. Lediard tr. J. Terrasson Life Sethos II. vii. 80 Unless they..restore..them to their favour in their life-time. 1793 T. Pennant Lit. Life 41 None of these books are to be printed in my life-time. 1860 N. Hawthorne Marble Faun II. iv. 48 If there were one of those friends whose lifetime was twisted with your own, I am enough of a fatalist to feel assured that [etc.]. 1875 B. Jowett in tr. Plato Dialogues (ed. 2) III. 183 A lifetime might be passed happily in such pursuits. 1925 W. Williams in B. C. Williams O. Henry Prize Stories of 1925 (1926) 46 For half his lifetime he had been an undefeated fencing champion, also victor in a dozen duels. 1963 W. Blunt Of Flowers & Village 46 The japonica has had no less than five different names during my lifetime. 2007 B. Kingsolver Animal, Veg., Miracle viii. 114 In my lifetime Kentucky farmers have mostly had the options of going broke, or going six ways to Sunday for the sake of staying solvent. 2. a. The duration of something's existence or usefulness; = life n. 10a. ΘΚΠ the world > time > duration > [noun] > lifespan (of material things, etc.) age1535 life1703 lifetime1822 longevity1842 lifespan1898 natural life1900 1822 W. Hazlitt in Liberal Dec. 231 The great world has been doing little else but playing at make-believe all its life-time. 1858 N. Hawthorne Fr. & Ital. Jrnls. I. 167 Durable for whatever may be the lifetime of the world. 1884 J. M. Swank Hist. Manuf. Iron 308 During its life-time about 1,250,000 trains and a like number of detached engines and tenders passed over it. 1937 Amer. Home Apr. 41/3 It is wise to remember that the lifetime of a frame house usually spans one or two serious periods of financial depression. 1965 H. I. Ansoff Corporate Strategy (1968) ii. 24 If it turns out that the lifetime of some projects exceeds the budget period, the period is extended for purpose of analysis. 1974 Daily Tel. 17 Apr. 17/4 There is no possibility of action on the lines of the group's proposals in the lifetime of the present Parliament. 2007 Dr. Dobb's Jrnl. Nov. 57/1 This code simply protects the data structure using the same mutex for its entire shared lifetime. b. Physics. Also mean lifetime. The average duration of existence of the members of an exponentially decaying population of identical particles or states (equal to the period in which the population decreases by a factor of e). Cf. half-life n. 2a, life n. 10b. ΘΚΠ the world > matter > physics > atomic nucleus > radioactive isotope > radioactive nuclide > [noun] > average duration life1903 mean lifetime1909 1909 Munsey's Mag. 41 399/2 The actual lifetime of radium is unknown, but after fifteen hundred years only half of the original mass would remain. 1939 Physical Rev. 55 506/1 The lifetime for a mesotron at rest has been estimated..to be of the order 2−4 × 10⁻⁶ sec. 1950 Physical Rev. 77 153/1 (heading) Lifetimes of mercury and potassium atoms in excited states. 1973 L. J. Tassie Physics Elem. Particles vi. 51 A typical strange particle is the Λ°, an uncharged particle which decays with a mean lifetime of 2·5 × 10−¹⁰ s. 1993 New Scientist 13 Mar. 41/2 Particle physicists are also interested in this quantity [sc. half-life], but for historical reasons they talk in terms of a related number called the lifetime, which is the time it takes for the number of particles in the original sample to reduce to 1/e of their original number. 2002 F. Close et al. Particle Odyssey viii. 150 Nowadays, almost every experiment has a silicon ‘vertex’ detector, which can reveal the ‘vertices’ where tracks diverge as short-lived particles decay to those with longer lifetimes. 3. In extended use: a very long period of time. ΘΚΠ the world > time > [noun] > stretch, period, or portion of time tidea900 while971 fristOE stemOE throwOE timeOE selea1250 piecec1300 termc1300 stagea1325 whilesc1330 space?a1400 racec1400 spacec1405 termine1420 parodya1425 timea1425 continuancec1440 thrallc1450 espace1483 space of timec1500 tracta1513 stead1596 reach1654 amidst1664 stretch1698 spell1728 track1835 lifetime1875 time slice1938 1875 Sioux County (Iowa) Herald 14 Oct. 4/2 Men are not like woman, and will not wait a life-time without knowing their fate when it can be decided by a single word. 1928 Iowa Recorder 12 Sept. 5/2 $5 buys a twelve foot pressure treated hog trough that will last you a ‘lifetime’. 1959 W. Golding Free Fall iii. 70 I got complications, had ups and downs. I was a lifetime in that ward. 2008 Daily News of Los Angeles (Nexis) 1 Feb. c1 A lot of guys wait a lifetime to go to the Super Bowl. B. adj. (attributive). Lasting for the duration of a life; made or achieved during one's life. ΘΚΠ the world > life > source or principle of life > [adjective] > course or span of life > for duration of a lifetime lifelong1613 livelong1788 forever1879 womb-to-tomb1947 lifetime1962 1909 Sat. Evening Post 16 Jan. 7/3 I've nosed into the paddock and made a lifetime hit with stable boys, jockeys, trainers, clockers and even owners. 1937 Amer. Home Apr. 4/1 (advt.) Everdur means lifetime freedom from rust and consequent replacement expense. 1943 W. Stegner Big Rock Candy Mountain i. 53 Just because Jud gives her a little whirl, she thinks she's got a lifetime lease on him. 1962 Amer. Speech 37 16 New England did contribute the largest number of white lifetime migrants to the state of New York. 1974 Country Life 2 May 1065/2 The gifts tax..would be a tax on lifetime gifts. 2006 N.Y. Times (National ed.) 11 Apr. e5/1 Annuitization is the only way you can get a lifetime guarantee that you won't run out of money. Phrases P1. of a lifetime: (as postmodifier) implying (often hyperbolically) that an event, situation, or thing will never be equalled or repeated. Frequently in the chance of a lifetime. ΘΚΠ the world > relative properties > kind or sort > individual character or quality > quality of being special or extraordinary > especially or particularly [phrase] > incomparable or unique without compare1621 of a lifetime1846 sans-pareil1962 1846 S. Ellis Temper & Temperament II. vi. 11 He pitied her from his heart, to think she should be so blind to her own interest as to throw away the one chance of a lifetime—and for what? 1899 A. Conan Doyle Confessions in Duet 133 There are all..degrees of love, some just the whim of a moment, and others the passion of a lifetime. 1929 P. G. Wodehouse Mr. Mulliner Speaking ix. 314 It must be a cocktail. The cocktail of a lifetime. 1930 K. S. Prichard Haxby's Circus iii. 41 She's the chance of a life-time... The biggest bloomin' monty ever started on a racecourse. 1943 K. Tynan Let. 10 Oct. (1994) i. 11 Tonight I met the Girl of a Lifetime. 1954 W. S. Burroughs Let. Oct. (1993) 234 So I was cheated out of the fix of a lifetime. 1979 P. O'Connor Into Strong City xvii. 64 I was having the ride of a lifetime, frantically bumping it into a capacious Rubens blonde. 2000 J. Harvey Gimme Gimme Gimme (2002) 102/1 Watch this, watch this. I'm going to give the performance of a life time, watch. P2. all in a (also one's) lifetime: implying resignation to whatever happens. Now rare. ΘΚΠ the world > action or operation > difficulty > opposition > absence of resistance > implying resignation to whatever happens [phrase] all in a (also one's) lifetime1849 1849 N. Kingsley Diary (1914) 44 My consolation is that it is all in my lifetime and thus make myself quite contented. 1898 F. P. Dunne Mr. Dooley in Peace & War 187 Well, tubby sure, 'tis thryin' to be dhrivin' a coal wagon or a sthreet-car; but 'tis all in a lifetime. P3. the surprise of one's lifetime (see surprise n. 4b). This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.adj.a1300
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