ringspotn.
/ˈrɪŋspɒt/, U.S. /ˈrɪŋˌspɑt/ 1. An annular mark on a plant or animal (esp. a butterfly).
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the world > life > biology > physical aspects or shapes > marks > [noun] > annular mark
ringspot1844
1844 Penny Mag. 6 Jan. 3/2 The upper wings are whitish yellow, orange-stained at the tip, with a black ring-spot enclosing a yellow centre near the middle.
1894 W. Bateson Materials Study Variation i. xii. 305 The ring-spots of the upper or sub-dorsal row had, as a variation, a red centre or nucleus.
1904 J. W. Tutt Nat. Hist. Brit. Lepidoptera IV. 229 These are designated as the white ‘mirrors’ on black ‘ground-areas’, both together constituting ‘ring-spots’, as distinguished from ‘eye-spots’ proper.
1974 Country Life 28 Nov. 1648/1 In Scotland..members of this race [sc. large heath butterflies] differ from English specimens in having fewer ring-spots on the under-surface of the wings.
2. Any of several plant diseases characterized by annular spots or marks on the leaves, caused by fungi or viruses (also more fully ringspot disease, ringspot virus). Also: the spots themselves occurring as a symptom of the disease.In quot. 1906 in the name of a disease-causing fungus.
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the world > plants > disease or injury > [noun] > characterized by part affected or appearance produced
jaundice1600
black rot1769
root rot1831
leaf blight1849
leaf curl1850
black heart1862
icterus1866
albication1877
footrot1883
curl-leaf1886
silver top1890
stem-sickness1890
sleeping disease1899
mosaic1900
leaf mosaic1902
scorch1906
blotch1909
little leaf1911
ringspot1913
crinkle1920
vein banding1928
1906 M. C. Cooke Fungoid Pests 50 The ringed brown spot (Septoria Chrysanthemi)..has apparently been confined to Italy.]
1913 M. T. Cook Dis. Trop. Plants v. 88 (caption) Leaves of sugar-cane affected with ring-spot disease.
1927 Phytopathology 17 325 (caption) Ringspots in an early stage of development with margins of alternating zones of chlorotic and normal tissue.
1939 Jrnl. Pomol. 17 27 Ring Spot,..the disease [of lettuces] caused by the fungus mentioned [sc. Marssonina panattoniana], has been widespread in temperate regions from an early date.
1964 Phytopathology 54 702/1 No ringspot virus was detected in uninoculated primary leaves through the sixteenth day.
1980 Daily Tel. 16 Jan. 8/3 There are some Cornish cauliflower types which have not been available for about 30 years which we think were resistant to a disease called ringspot.
2005 BBC Focus Dec. 54/4 Papaya... How is it modified?..Engineered in Hawaii to be resistant to the ringspot virus.
Derivatives
ˈring-ˌspotted adj. rare having ring-shaped markings.
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1870 E. Nicholson Indian Snakes 118 Dipsas multimaculata—the Broad-headed Tree-snake (ring-spotted).
1961 R. W. Butcher New Illustr. Brit. Flora II. 762 Leaves broad, lanceolate, grey-green, ring-spotted, flat and broadened from the base.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1844