die-offn.

Brit.

/ˈdʌɪɒf/, U.S.

/ˈdaɪˌɔf/,

/ˈdaɪˌɑf/

Origin: Formed within English, by conversion. Etymon: to die off at die v.¹ Phrasal verbs.

Etymology: < to die off at die v.¹ Phrasal verbs.

1. A foot rot of the sweet potato. Now rare.

ΘΚΠ

the world > plants > disease or injury > [noun] > type of disease > fungal > various diseases

footrot1706

botrytis1751

leaf spot1846

winter rot1857

leaf blotch1860

downy mildew1886

sun scald1896

Septoria1897

spike-disease1906

fusarium rot1907

hadromycosis1916

verticillium wilt1916

wilt1916

die-off1918

rhynchosporium1918

shoestring rot1931

vascular wilt (disease)1946

1918 F. D. Heald in E. L. D. Seymour Farm Knowl. II. v. xxxiii. 497 (table) Sweet potato (Diseases)... Small brown to black spots on stem near soil line, finally girdling and extending up the stem, and causing wilting and death... Foot rot or die-off.

1925 C. Chupp Man. Veg. Garden Dis. xvii. 500 Foot-rot or die-off was first recognized as a distinct disease in 1912 when Harter received specimens from Virginia.

1928 Farmers' Bull. (U.S. Dept. Agric.) No. 1059. 8 (heading) Foot rot (die off).

2. An episode or period in which a significant proportion of a population dies naturally, usually within a short space of time; a process causing this. Also as a mass noun: death of a significant proportion of a population in this way. Also figurative.

ΚΠ

1930 W. M. Raine & W. C. Barnes Cattle xi. 267 Ranch owners were forced by economic necessity to guarantee food for their stock, to furnish hay and shelter in bad weather. The great die-off during the winter of 1886–1887 pointed this out.

1938 Amer. Midland Naturalist 20 575 These sudden outbreaks and die-offs of wild mice.

1976 Westworld (Vancouver, Brit. Columbia) Nov.–Dec. 51/3 The same population pattern—explosive growth, then severe die-off—has repeated all across the continent because starlings cannot control their increase.

1991 A. Nikiforuk Fourth Horseman i. 10 As soon as cities of a hundred thousand people began to appear, great die-offs became as common as thunder-storms.

2000 Book Nov. 16/3 If BookSense.com can pull in its own slice of that growth..it could help slow the die-off affecting independent stores nationwide.

This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2019).

单词	die-off
释义	die-offn. Brit. /ˈdʌɪɒf/, U.S. /ˈdaɪˌɔf/, /ˈdaɪˌɑf/ Origin: Formed within English, by conversion. Etymon: to die off at die v.¹ Phrasal verbs. Etymology: < to die off at die v.¹ Phrasal verbs. 1. A foot rot of the sweet potato. Now rare. ΘΚΠ the world > plants > disease or injury > [noun] > type of disease > fungal > various diseases footrot1706 botrytis1751 leaf spot1846 winter rot1857 leaf blotch1860 downy mildew1886 sun scald1896 Septoria1897 spike-disease1906 fusarium rot1907 hadromycosis1916 verticillium wilt1916 wilt1916 die-off1918 rhynchosporium1918 shoestring rot1931 vascular wilt (disease)1946 1918 F. D. Heald in E. L. D. Seymour Farm Knowl. II. v. xxxiii. 497 (table) Sweet potato (Diseases)... Small brown to black spots on stem near soil line, finally girdling and extending up the stem, and causing wilting and death... Foot rot or die-off. 1925 C. Chupp Man. Veg. Garden Dis. xvii. 500 Foot-rot or die-off was first recognized as a distinct disease in 1912 when Harter received specimens from Virginia. 1928 Farmers' Bull. (U.S. Dept. Agric.) No. 1059. 8 (heading) Foot rot (die off). 2. An episode or period in which a significant proportion of a population dies naturally, usually within a short space of time; a process causing this. Also as a mass noun: death of a significant proportion of a population in this way. Also figurative. ΚΠ 1930 W. M. Raine & W. C. Barnes Cattle xi. 267 Ranch owners were forced by economic necessity to guarantee food for their stock, to furnish hay and shelter in bad weather. The great die-off during the winter of 1886–1887 pointed this out. 1938 Amer. Midland Naturalist 20 575 These sudden outbreaks and die-offs of wild mice. 1976 Westworld (Vancouver, Brit. Columbia) Nov.–Dec. 51/3 The same population pattern—explosive growth, then severe die-off—has repeated all across the continent because starlings cannot control their increase. 1991 A. Nikiforuk Fourth Horseman i. 10 As soon as cities of a hundred thousand people began to appear, great die-offs became as common as thunder-storms. 2000 Book Nov. 16/3 If BookSense.com can pull in its own slice of that growth..it could help slow the die-off affecting independent stores nationwide. This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2019). < n.1918
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