单词 | corona |
释义 | coronan.1 1. A small circle or disc of light (usually prismatically coloured) appearing round the sun or moon. Also applied to a similar appearance opposite the sun, an anthelion n.; and more widely, to similar phenomena in optical instruments, etc. ΘΚΠ the world > the universe > luminous appearance > [noun] > anthelion rainbow1555 crown1563 corone1569 corona1658 anthelion1670 fogbow1820 glory1823 the world > the universe > luminous appearance > [noun] > corona crown1563 wreath1567 corone1569 corona1658 1658 in E. Phillips New World Eng. Words 1670 H. Stubbe Plus Ultra 150 The reflexion of the glasses..did create a corona of several colours. 1783 Barker in Philos. Trans. (Royal Soc.) 73 245 There was a remarkable corona about the moon. 1807 T. Young Course Lect. Nat. Philos. I. 466 The coloured circles or coronae, sometimes seen round the sun and moon. 1823 W. Scoresby Jrnl. Voy. Northern Whale-fishery 273 A splendid display of five concentric coronæ, or prismatic circles, produced by the action of the sun on a low stratum of fog. 1849 D. P. Thomson Introd. Meteorol. 227 In coronæ the blue prismatic colour is nearer the centre than the red; in halos this arrangement is reversed..the former arise from diffraction, the latter from refraction, of light. 2. Astronomy. The halo of radiating white light seen around the disc of the moon in a total eclipse of the sun; now known to belong to the sun. ΘΚΠ the world > the universe > sun > [noun] > corona corona1849 1849 G. B. Airy in J. F. W. Herschel Man. Sci. Enq. (Lords Commissioners Admiralty) 4 If the eclipse be total, attention should be paid..to the luminous corona surrounding the moon. 1879 H. W. Warren Recreations in Astron. v. 88 This region of discontinuous flame below the corona is called the chromosphere. 1890 C. A. Young Elem. Astron. vi. §208 The corona is proved to be a true solar appendage and not a mere optical phenomenon. 3. A circular chandelier suspended from the roof of a church; more fully corona lucis (crown of light). ΘΚΠ society > faith > artefacts > furniture > other furniture > [noun] > chandelier crown1443 rowel?c1450 corona1825 the world > matter > light > artificial light > an artificial light > candle > support or holder for a candle > [noun] > candelabrum > circular crown1443 corona1825 1825 T. D. Fosbroke Encycl. Antiq. I. vi. 95 Pendent chandeliers, called Coronæ. 1844 Ecclesiologist May 127 Two coronæ lucis to carry six lights. 1870 F. R. Wilson Archit. Surv. Churches Lindisfarne 63 From the middle rib of the Chancel depends a corona. 4. Architecture. A member of the cornice, above the bed-moulding and below the cymatium, having a broad vertical face, usually of considerable projection; also called drip or larmier. [In Vitruvius corona is the cornice.] ΘΚΠ society > leisure > the arts > visual arts > architecture > column > [noun] > entablature > cornice > corona larmier1480 corona1563 crown1611 1563 J. Shute First Groundes Archit. sig. Civ Coronix..you shall deuid into .4. partes. geue one part vnto Cimatium vnder Corona..geue likwise .2 parte vnto Corona..& the fourth part which remaineth, geue vnto Cymatium ouer Corona. 1712 J. Addison Spectator No. 415. ¶9 In a Cornice, if the Gola or Cynatium of the Corona, the Modillions or Dentelli, make a noble Show by their graceful Projections. 1789 P. Smyth tr. H. Aldrich Archit. (1818) 109 Reason forbids the corona to be omitted in the cornice. 1823 P. Nicholson New Pract. Builder 474 In the cornices of the entablatures, the coronas should not be ornamented. 1862 S. Smiles Lives Engineers II. 43 The last pieces of the corona were set [in the Eddystone Lighthouse]. 5. Roman Catholic Church. The tonsure of a cleric. [Medieval Latin corona clericalis, Old French corone, Godefroy] ΘΚΠ society > faith > worship > cleanness (ceremonial) > tonsure > [noun] > instance of Christ's marka1225 crownc1275 crowningc1400 tonsure1430 corona1882 1882 W. Maskell Monumenta Ritualia Ecclesiae Anglicanae (ed. 2) II. p. ci (note) The corona of the priesthood was distinguished from that of any lower order. 6. Anatomy, etc. Applied to various parts of the body resembling or likened to a crown; also to the upper portion or crown of any part, as of a tooth; cf. crown n. Categories » a. (in full corona glandis): see quot. 1753. Thesaurus » Categories » b. Pathology (in full corona veneris) ‘Term for syphilitic blotches on the forehead, which often extend around it like a crown’ ( New Sydenham Soc. Lexicon). Categories » c. Zoology. The ‘test’ or body-wall of an echinoid. d. The trochal disc of a rotifer, etc. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Rotifera > [noun] > member of > trochal apparatus corona1712 wheelwork1778 trochus1888 1712 J. Arbuthnot John Bull Still in Senses iii. 12 The Tokens were evident in him, Blotches, Scabs, and the Corona. 1753 Chambers's Cycl. Suppl. Corona, in anatomy, is that edge of the glans of the penis where the preputium begins. 1828 N. Webster Amer. Dict. Eng. Lang. Corona..2. In anatomy, the upper surface of the molar teeth or grinders. 1872 H. A. Nicholson Man. Palæontol. 103 The ‘corona’ is the main element of the test. 1886 C. T. Hudson Rotifera I. i. 6 Each side of the front of the head, or corona, is rounded into a nearly circular lobe. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 556 The five ambulacral and interambulacral areæ [in Echinoidea] make up the corona or test. 1898 A. Sedgwick Student's Text-bk. Zool. I. 299 Phylum Rotifera... It will be useful to use the word corona for the discoidal anterior end of the body. 1902 Amer. Naturalist 36 932 In Melo and some other genera the spines project upwards and are generally unclosed on the apertural side. This produces the spiral ‘corona’, so striking a feature in some shells. 1906 Cambr. Nat. Hist. I. 539 Echinidae in which the plates of the corona dovetail into each other. 1929 Encycl. Brit. XIX. 575/1 Numerous cilia crowded upon a particular area of delicate skin close to or encircling the mouth... The whole area, including the mouth itself, as seen when the cilia are active, is called the corona. 1966 H. G. S. Wright tr. J. Donner Rotifers 23 This corona surrounds a cup-shaped enclosure. e. corona radiata n. (a) a mass of projection fibres in the brain which spread radially from the internal capsule to the cerebral cortex; (b) the layer of radially elongated follicular cells which surround an ovum and develop shortly before ovulation. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > Graafian follicle, etc. corpus luteum1788 ovarian follicle1834 Graafian follicle1841 theca folliculi1857 corona radiata1869 stigma1890 the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > other parts of brain epicranium1603 buttocks of the brain1615 raphe1615 fornix1681 peduncle1707 psalterium1779 mammillary body1828 corona radiata1869 paraphysis1892 1848 R. Dunglison Med. Lexicon (ed. 7) 222/2 Fasciculi of white fibres radiate in all directions from every part of the surface of the optic thalamus, excepting its inner side..; the anterior of these fibres pass directly forwards, the middle fibres outwards, and the posterior backwards, forming the corona radians.] 1869 Gray's Anat. (ed. 5) 482 Some of the diverging fibres..radiate into the anterior, middle, and posterior lobes of the hemisphere..before passing to the convolutions. These fibres have received the name of corona radiata. 1892 C. S. Minot Human Embryol. i. iii. 53 The cells..next to the ovum are cylindroid, and radiate round the zona, constituting thus the so-called corona radiata. 1913 Cunningham's Text-bk. Anat. (ed. 4) 644 The fibres..spread out widely from each other in a radiating or fan-shaped manner, as they are followed to the various gyri of the cerebral hemisphere. This arrangement is termed the corona radiata. 1961 Lancet 29 July 249/2 The lesions involved the pyramidal pathways at the level of the corona radiata, internal capsule, or pons. 1968 H. Wang Outl. Human Embryol. i. 8 The liberated ovum, surrounded by the corona radiata, is expelled from the follicle. 7. Botany. a. An appendage on the top of a seed, as the pappus on that of a dandelion or thistle. ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > calyx > pappus or appendage on seed plume1578 pappe1657 pappus1704 corona1753 coronule1806 coma1830 plumule1894 1753 Chambers's Cycl. Suppl. Corona, among botanists, expresses anything growing on the head of the seed..Sometimes the coronæ are composed of simple filaments, and sometimes they are ramose. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. ii. v. 540 The corona of hairs which serves..for the dissemination of many seeds through the air. b. A crown-like appendage on the inner side of the corolla in some flowers, as the daffodil and lychnis. ΚΠ 1830 J. Lindley Introd. Nat. Syst. Bot. 150 Petals..arising from without a short membranous rim or corona. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. ii. v. 471 When the corolla itself is gamopetalous, the parts of the corona also coalesce, as in Narcissus, where it is very large. ΚΠ 1828 N. Webster Amer. Dict. Eng. Lang. Corona..3. In botany, the circumference or margin of a radiated compound flower. Encycl. d. The medullary sheath, or innermost ring of woody tissue surrounding the pith in the stems of dicotyledons and gymnosperms. ΚΠ 1770 J. Hill Constr. Timber (octavo ed.) 57 The Corona is a ring..placed between the wood and the Pith. e. The crown of the root, the junction of root and stem. ΘΚΠ the world > plants > part of plant > root > [noun] > summit of root corona1811 crown1850 1811 A. T. Thomson London Dispensatory ii. 393 It [sc. wheat] has two set of roots; one set proceeding directly from the seed, and the other from what is denominated the corona of the plant, about two inches above the first: the coronal roots do not shoot till spring-time, and collect more nutriment than the seminal roots. Categories » 8. Astronomy. Corona australis, Corona borealis: two constellations, the Southern and Northern Crown, consisting of elliptical rings of stars. 9. A luminous appearance in the gas surrounding a conductor when the electric field at its surface is strong enough to ionize the gas but not strong enough to cause a spark. Also attributive, as corona discharge n. the discharge causing a corona. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > discharge corona corona1906 the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > discharge corona > cause of corona discharge1918 1906 A. Russell Treat. Theory Alternating Currents II. 475 When the potential difference between the mains is very high, each main is seen surrounded by a faintly luminous enveloping cloud of a bluish colour, which apparently does not touch the conductor it envelopes. This cloud is called the corona. 1906 A. Russell Treat. Theory Alternating Currents II. 475 When coronae make their appearance it is found that the capacity between the mains and the loss of energy in distribution are increased. 1913 H. B. Dwight Transmission Line Formulas 6 A current in phase with the voltage will flow between the conductors, but it is only noticeable at very high voltages. Part of it is a leakage current flowing over the insulators, and part is a discharge through the air, and produces the glow called corona, on high-voltage conductors. 1918 Jrnl. Chem. Soc. 114 ii. 42 The corona discharge. 1926 Encycl. Brit. 2nd Suppl. I. 949/1 In the case of high voltage aerial lines there is a notable loss of power due to the ionisation of the air. This is called the corona effect since it makes the lines appear luminous in the dark. 1937 Discovery Aug. 248/2 Synthetic rubber compositions are used as a corona-proof sheath in high tension power cables. 1953 Electronic Engin. 25 64 A corona stabilizer consists of a concentric anode and cathode in an envelope filled with a few millimetres pressure of a suitable gas, usually hydrogen. 1959 R. E. Huschke Gloss. Meteorol. 138 Aircraft flying through active electrical storms often develop corona discharge streamers from antennas and propellers. This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2021). Coronan.2 A well-known brand of Havana cigar. ΘΚΠ the world > physical sensation > use of drugs and poison > tobacco > smoking > articles or materials used in smoking > [noun] > thing which may be smoked > cigar or cheroot > cigar > proprietary cigars Partagas1858 Romeo y Julieta1878 Villar y Villar1878 Ramon Allones1879 Corona1887 Upmann1969 1877 Trade Marks Jrnl. 14 Nov. 1671 La Corona... Firm of Manuel Lopez and Company, Havana.] 1887 Army & Navy Co-op. Soc. Price List 127 Havana Cigars..‘La Corona’..Aguilas Imperiales Corona. 1904 Trade Marks Jrnl. 23 Nov. 1424 La Corona... Manufactured Tobacco. The Havana Cigar and Tobacco Factories, Limited.] 1912 W. J. Locke Aristide Pujol viii He found him smoking a large corona. 1915 Morning Post 16 Mar. 4 I..bought a thousand Corona Coronas an hour ago. 1919 P. G. Wodehouse Damsel in Distress xxi Over the old coronas we will discuss many things. 1921 19th Cent. & After May 767 The fur-coated Corona-puffing multi-millionaire. 1926 M. Walsh Key above Door viii. 95 I was in the middle of a long corona when Lady Clunas rose to go. 1929 Tobacco 1 Oct. 72/2 The H. Upman factory is continuing the exportation of large quantities of Havana cigars from the English market, principally in Corona et Petit Corona sizes of the H. Upman brand. 1964 C. Hodder-Williams Main Experiment v. 49 Honiton peered penetratingly over the top of a large Corona at Sally, who had silently declined a cigarette. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2022). coronan.3 A coronavirus; (now) esp. that which causes Covid-19. Also: infection with or disease caused by a coronavirus; (now) esp. Covid-19. Frequently as a modifier, as in corona crisis, corona pandemic, etc. ΘΚΠ the world > life > biology > organism > micro-organism > virus > [noun] > types of latent virus1750 influenza virus1880 poxvirus1891 filter-passer1906 mosaic virus1914 bacteriophage1921 herpes virus1925 Rous sarcoma virus1925 Rous virus1925 papillomavirus1935 poliovirus1939 Semliki Forest virus1944 actinophage1947 mycophage1947 mengovirus1949 tumour virus1950 Zika1952 mycobacteriophage1953 Sindbis virus1953 myxovirus1954 echovirus1955 RNA virus1955 adenovirus1956 SV1956 arborvirus1957 enterovirus1957 foamy virus1957 respiratory syncytial virus1957 polyoma1958 parainfluenza1959 reovirus1959 arbovirus1960 cytomegalovirus1960 TMV1960 vacuolating agent or virus1960 Coxsackie virus1961 rhinovirus1961 RSV1961 papovavirus1962 paramyxovirus1962 picornavirus1962 mycophage1963 parvovirus1965 rhabdovirus1966 Ross River virus1966 coronavirus1968 EBV1968 Epstein–Barr virus1968 leukovirus1968 CMV1969 arenovirus1970 oncornavirus1970 togavirus1970 alphavirus1971 calicivirus1971 Dane particle1971 flavivirus1971 flavovirus1971 maedi1971 orbivirus1971 mycovirus1972 visna-maedi virus1972 flu virus1973 maedi-visna virus1973 corona1974 orthopoxvirus1974 rotavirus1974 whitepox1974 retravirus1975 Ebola virus1976 morbillivirus1976 retrovirus1976 Ebola1977 lentivirus1979 reassortant1979 HTLV1980 morbilli1981 filovirus1982 LAV1983 CV1985 HIV1986 HIV virus1987 C-192020 Covid2020 Covid-192020 CV-192020 the world > health and disease > ill health > a disease > bacterial or viral disorders > [noun] > viral disorders virosis1927 Bornholm disease1933 rickettsialpox1946 virus1950 chikungunya1954 West Nile1960 Ross River1973 CV1985 SARS2003 corona2019 C-192020 Covid2020 Covid-192020 CV-192020 1974 in Federal Trade Comm. Decisions (1976) 86 1421 Viruses may be distinguished as lipids (which include influenzas, parainfluenzas and coronas) and nonlipids. 2019 @NBinsulaiman 7 Dec. in twitter.com (accessed 4 June 2020) Last time I did that I was convinced I had corona. 2020 Guardian (Nexis) 9 Apr. International travel is practically non-existent due to the corona pandemic. This is a new entry (OED Third Edition, September 2020; most recently modified version published online March 2022). < n.11563n.21887n.31974 |
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