obsolescencen.

Brit.

/ˌɒbsəˈlɛsns/, U.S.

/ˌɑbsəˈlɛs(ə)ns/

Origin: Formed within English, by derivation. Etymons: obsolescent adj., -ence suffix.

Etymology: < obsolescent adj.: see -ence suffix.

a. The process or fact of becoming obsolete or outdated, or of falling into disuse.

ΘΚΠ

the world > action or operation > harm or detriment > disadvantage > uselessness > non-use > [noun] > falling out of use

passing away?c1425

obsoletion1804

desuetude1821

obsolescence1832

1832 N. Webster Dict. Eng. Lang. (citing Crombie) Obsolescence, the state of becoming obsolete.

1869 M. Pattison Introd. Pope's Ess. Man 16 The same process of obsolescence is gradually affecting..parts of Pope's poems.

1891 T. R. Lounsbury Stud. Chaucer III. vii. 110 He recognized the obsolescence of his language, if not its obsoleteness.

1906 J. H. Moulton Gram. New Test. Greek I. v. 78 In the NT the obsolescence of the superlative, except in the elative sense, is most marked.

1971 Geophysical Jrnl. 22 449 With the general adoption of the International System of Units..the c.g.s. unit of acceleration, the gal (or Gal), is doomed to obsolescence.

1988 A. N. Wilson Tolstoy xiii. 338 Old heresies, like old jokes, acquire their own particular kind of pathetic obsolescence.

b. spec. The process whereby or state at which machinery, consumer goods, etc., become obsolete as a result of technological advances, changes in demand, etc. Cf. planned obsolescence n. at planned adj. Compounds.

ΘΚΠ

the world > time > relative time > the past > oldness or ancientness > [noun] > old-fashionedness

staleness1552

surannation1656

superannuation1658

antiquation1659

fustinessa1661

antiquateness1664

antiquatedness1730

superannuity1781

innovelty1783

old-fashionedness1817

square-toedness1846

fossilism1861

obsolescence1887

old-timiness1887

frumpishness1889

old-fangledness1895

out-of-dateness1915

datedness1933

outdatedness1953

time warp1965

1887 E. Garcke & J. M. Fells Factory Accts. v. 93 This increased production may be due to certain parts being of a more permanent type than others and added to stock with less risk of obsolescence.

1913 R. J. Porters Pitman's Dict. Book-keeping 330 Any loss sustained through obsolescence is charged to Profit and Loss.

1966 New Statesman 28 Jan. 140/2 We have set up an obsolescence reserve of £1,500,000.

1995 Marketing 6 Apr. 10/2 If the manufacturers held accurate customer data, they could anticipate the point of obsolescence and make a new sale.

2. Biology and Medicine.

a. The gradual disappearance or atrophy of an organ or part; persistence of an organ, tissue, etc., without function or activity; (also) spec. the penultimate stage in the evolutionary loss of a character, or in the extinction of a species.

ΘΚΠ

the world > life > biology > taxonomy > taxon > [noun] > species or sub-species > disappearance or atrophy of part or organ

obsolescence1852

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. II ii. 1024 By the obsolescence of the articulation b and the last segment becoming obsolete.

1876 J. S. Bristowe Treat. Theory & Pract. Med. ii. iii. 458 A sequela of the obsolescence of scattered miliary tubercles.

1883 G. Allen in Knowledge 20 July 33/2 All parts which are seldom or never exercised tend to atrophy or obsolescence.

1914 Science 10 Apr. 543/2 The obsolescence of the anterior adductor is doubtless the result of the shift of the antero-posterior axis consequent upon the readjustment of the soft parts of the animal.

1940 Philos. Trans. (Royal Soc.) B. 230 343 If these suggestions are approximately correct, then the small size of the pterygoid elements in mammals is probably correlated with their functional obsolescence.

1969 Q. Rev. Biol. 44 40/2 Obsolescence of the tail in tree sloths began with the small, short-tailed ancestral ground sloths.

2000 Nephrol., Dialysis, Transplantation 15 689 The degree of glomerular obsolescence and the severity of interstitial fibrosis correlated with the severity of glomerular lesion in primary IgAN [= immunoglobulin A nephropathy].

2001 Sci. World Jrnl. (Electronic text) 1 These support the opinion that conservation undertaken in restricted and protected areas is not self-sustainable.., and in the long run will most probably lead in the direction of obsolescence and extinction.

†b. The almost complete effacement of a marking on a bird's plumage, an animal's coat, etc. Obsolete.

ΘΚΠ

the mind > mental capacity > memory > effacement, obliteration > [noun] > nearly complete

obsolescence1873

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > wings(s) > stigma > nearly complete effacement of

obsolescence1873

1873 Harper's Mag. Feb. 464/1 The birds..frequently take on a peculiar deep plumbeous, or dusky brown, accompanied by a partial obsolescence of spots and streaks.

1877 E. Coues & J. A. Allen Monogr. N. Amer. Rodentia (U.S. Geol. Surv. Territories, vol. XI) 291 The black spot at the tip of the ear varies greatly in extent in different specimens, in some being reduced almost to obsolescence.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	obsolescence
释义	obsolescencen. Brit. /ˌɒbsəˈlɛsns/, U.S. /ˌɑbsəˈlɛs(ə)ns/ Origin: Formed within English, by derivation. Etymons: obsolescent adj., -ence suffix. Etymology: < obsolescent adj.: see -ence suffix. 1. a. The process or fact of becoming obsolete or outdated, or of falling into disuse. ΘΚΠ the world > action or operation > harm or detriment > disadvantage > uselessness > non-use > [noun] > falling out of use passing away?c1425 obsoletion1804 desuetude1821 obsolescence1832 1832 N. Webster Dict. Eng. Lang. (citing Crombie) Obsolescence, the state of becoming obsolete. 1869 M. Pattison Introd. Pope's Ess. Man 16 The same process of obsolescence is gradually affecting..parts of Pope's poems. 1891 T. R. Lounsbury Stud. Chaucer III. vii. 110 He recognized the obsolescence of his language, if not its obsoleteness. 1906 J. H. Moulton Gram. New Test. Greek I. v. 78 In the NT the obsolescence of the superlative, except in the elative sense, is most marked. 1971 Geophysical Jrnl. 22 449 With the general adoption of the International System of Units..the c.g.s. unit of acceleration, the gal (or Gal), is doomed to obsolescence. 1988 A. N. Wilson Tolstoy xiii. 338 Old heresies, like old jokes, acquire their own particular kind of pathetic obsolescence. b. spec. The process whereby or state at which machinery, consumer goods, etc., become obsolete as a result of technological advances, changes in demand, etc. Cf. planned obsolescence n. at planned adj. Compounds. ΘΚΠ the world > time > relative time > the past > oldness or ancientness > [noun] > old-fashionedness staleness1552 surannation1656 superannuation1658 antiquation1659 fustinessa1661 antiquateness1664 antiquatedness1730 superannuity1781 innovelty1783 old-fashionedness1817 square-toedness1846 fossilism1861 obsolescence1887 old-timiness1887 frumpishness1889 old-fangledness1895 out-of-dateness1915 datedness1933 outdatedness1953 time warp1965 1887 E. Garcke & J. M. Fells Factory Accts. v. 93 This increased production may be due to certain parts being of a more permanent type than others and added to stock with less risk of obsolescence. 1913 R. J. Porters Pitman's Dict. Book-keeping 330 Any loss sustained through obsolescence is charged to Profit and Loss. 1966 New Statesman 28 Jan. 140/2 We have set up an obsolescence reserve of £1,500,000. 1995 Marketing 6 Apr. 10/2 If the manufacturers held accurate customer data, they could anticipate the point of obsolescence and make a new sale. 2. Biology and Medicine. a. The gradual disappearance or atrophy of an organ or part; persistence of an organ, tissue, etc., without function or activity; (also) spec. the penultimate stage in the evolutionary loss of a character, or in the extinction of a species. ΘΚΠ the world > life > biology > taxonomy > taxon > [noun] > species or sub-species > disappearance or atrophy of part or organ obsolescence1852 1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. II ii. 1024 By the obsolescence of the articulation b and the last segment becoming obsolete. 1876 J. S. Bristowe Treat. Theory & Pract. Med. ii. iii. 458 A sequela of the obsolescence of scattered miliary tubercles. 1883 G. Allen in Knowledge 20 July 33/2 All parts which are seldom or never exercised tend to atrophy or obsolescence. 1914 Science 10 Apr. 543/2 The obsolescence of the anterior adductor is doubtless the result of the shift of the antero-posterior axis consequent upon the readjustment of the soft parts of the animal. 1940 Philos. Trans. (Royal Soc.) B. 230 343 If these suggestions are approximately correct, then the small size of the pterygoid elements in mammals is probably correlated with their functional obsolescence. 1969 Q. Rev. Biol. 44 40/2 Obsolescence of the tail in tree sloths began with the small, short-tailed ancestral ground sloths. 2000 Nephrol., Dialysis, Transplantation 15 689 The degree of glomerular obsolescence and the severity of interstitial fibrosis correlated with the severity of glomerular lesion in primary IgAN [= immunoglobulin A nephropathy]. 2001 Sci. World Jrnl. (Electronic text) 1 These support the opinion that conservation undertaken in restricted and protected areas is not self-sustainable.., and in the long run will most probably lead in the direction of obsolescence and extinction. †b. The almost complete effacement of a marking on a bird's plumage, an animal's coat, etc. Obsolete. ΘΚΠ the mind > mental capacity > memory > effacement, obliteration > [noun] > nearly complete obsolescence1873 the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > wings(s) > stigma > nearly complete effacement of obsolescence1873 1873 Harper's Mag. Feb. 464/1 The birds..frequently take on a peculiar deep plumbeous, or dusky brown, accompanied by a partial obsolescence of spots and streaks. 1877 E. Coues & J. A. Allen Monogr. N. Amer. Rodentia (U.S. Geol. Surv. Territories, vol. XI) 291 The black spot at the tip of the ear varies greatly in extent in different specimens, in some being reduced almost to obsolescence. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1832
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