| cannabis | (noun) the most commonly used illicit drug; considered a soft drug, it consists of the dried leaves of the hemp plant; smoked or chewed for euphoric effect | Synonyms: ganja, marihuana, marijuana |
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| (noun) any plant of the genus Cannabis; a coarse bushy annual with palmate leaves and clusters of small green flowers; yields tough fibers and narcotic drugs | Synonyms: hemp |
| cannonade | (noun) intense and continuous artillery fire | Synonyms: drumfire |
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| caragana | (noun) any plant of the genus Caragana having even-pinnate leaves and mostly yellow flowers followed by seeds in a linear pod | Synonyms: pea tree |
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| carbonado | (noun) a piece of meat (or fish) that has been scored and broiled | - |
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| (noun) an inferior dark diamond used in industry for drilling and polishing | Synonyms: black diamond |
| carbonara | (noun) sauce for pasta; contains eggs and bacon or ham and grated cheese | - |
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| carbonate | (noun) a salt or ester of carbonic acid (containing the anion CO3) | - |
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| carbonation | (noun) saturation with carbon dioxide (as soda water) | - |
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| carbonator | (noun) a device that carries out carbonation. | Synonyms: soda carbonator, soda maker |
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| cardinal | (noun) crested thick-billed North American finch having bright red plumage in the male | Synonyms: cardinal grosbeak, Cardinalis cardinalis, redbird, Richmondena Cardinalis |
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| (noun) a variable color averaging a vivid red | Synonyms: carmine |
| (noun) (Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes | - |
| (noun) the number of elements in a mathematical set; denotes a quantity but not the order | Synonyms: cardinal number |
| cardinalate | (noun) the office of cardinal | Synonyms: cardinalship |
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| (noun) (Roman Catholic Church) the body of all cardinals of the church; elects and advises the pope | Synonyms: College of Cardinals, Sacred College, Sacred College of Cardinals |
| cardinalfish | (noun) small red fishes of coral reefs and inshore tropical waters | - |
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| cardinality | (noun) (mathematics) the number of elements in a set or group (considered as a property of that grouping) | - |
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| cardinalship | (noun) the office of cardinal | Synonyms: cardinalate |
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| carina | (noun) any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom | - |
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| carinate | (noun) birds having keeled breastbones for attachment of flight muscles | Synonyms: carinate bird, flying bird |
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| carminative | (noun) medication that prevents the formation of gas in the alimentary tract or eases its passing | - |
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| carnage | (noun) the savage and excessive killing of many people | Synonyms: butchery, mass murder, massacre, slaughter |
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| carnality | (noun) feeling morbid sexual desire or a propensity to lewdness | Synonyms: lasciviousness, lubricity, prurience, pruriency |
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| carnallite | (noun) a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium | - |
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| carnation | (noun) a pink or reddish-pink color | - |
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| (noun) Eurasian plant with pink to purple-red spice-scented usually double flowers; widely cultivated in many varieties and many colors | Synonyms: clove pink, Dianthus caryophyllus, gillyflower |
| carnauba | (noun) Brazilian fan palm having an edible root; source of a useful leaf fiber and a brittle yellowish wax | Synonyms: carnauba palm, Copernicia cerifera, Copernicia prunifera, wax palm |
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| (noun) hard yellowish to brownish wax from leaves of the carnauba palm used especially in floor waxes and polishes | Synonyms: carnauba wax |
| carrageenan | (noun) a colloidal extract from carrageen seaweed and other red algae | Synonyms: carrageenin |
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| casuarina | (noun) any of various trees and shrubs of the genus Casuarina having jointed stems and whorls of scalelike leaves; some yield heavy hardwood | - |
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| catananche | (noun) any of several plants of the genus Catananche having long-stalked heads of blue or yellow flowers | - |
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| catena | (noun) a chain of connected ideas or passages or objects so arranged that each member is closely related to the preceding and following members (especially a series of patristic comments elucidating Christian dogma) | - |
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| catenary | (noun) the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points | - |
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| catnap | (noun) sleeping for a short period of time (usually not in bed) | Synonyms: forty winks, light sleep, nap, short sleep, snooze |
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| centenarian | (noun) someone who is at least 100 years old | - |
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| centenary | (noun) the 100th anniversary (or the celebration of it) | Synonyms: centennial |
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| chaenactis | (noun) any of several United States plants having long stalks of funnel-shaped white or yellow flowers | - |
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| chaetognath | (noun) any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth | Synonyms: arrowworm |
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| chanal | (noun) thorny shrub or small tree common in central Argentina having small orange or yellow flowers followed by edible berries | Synonyms: chanar, Geoffroea decorticans |
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| chanar | (noun) thorny shrub or small tree common in central Argentina having small orange or yellow flowers followed by edible berries | Synonyms: chanal, Geoffroea decorticans |
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| china | (noun) high quality porcelain originally made only in China | - |
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| (noun) dishware made of high quality porcelain | Synonyms: chinaware |
| chinaberry | (noun) tree of northern India and China having purple blossoms and small inedible yellow fruits; naturalized in the southern United States as a shade tree | Synonyms: azedarach, azederach, China tree, chinaberry tree, Melia azedarach, Melia azederach, Persian lilac, pride-of-India |
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| (noun) evergreen of tropical America having pulpy fruit containing saponin which was used as soap by Native Americans | Synonyms: China tree, false dogwood, jaboncillo, Sapindus saponaria |
| chinaware | (noun) dishware made of high quality porcelain | Synonyms: china |
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| chinchona | (noun) any of several trees of the genus Cinchona | Synonyms: cinchona |
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| chlorination | (noun) disinfection of water by the addition of small amounts of chlorine or a chlorine compound | - |
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| (noun) the addition or substitution of chlorine in organic compounds | - |
| chloroplatinate | (noun) any salt of chloroplatinic acid. | - |
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| choana | (noun) either one of the two posterior openings at the back of the nasal cavity leading to the nasopharynx | Synonyms: internal nostril, posterior nasal aperture |
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| cinchona | (noun) any of several trees of the genus Cinchona | Synonyms: chinchona |
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| (noun) medicinal bark of cinchona trees; source of quinine and quinidine | Synonyms: cinchona bark, Jesuit's bark, Peruvian bark |
| cinnabar | (noun) large red-and-black European moth; larvae feed on leaves of ragwort; introduced into United States to control ragwort | Synonyms: Callimorpha jacobeae, cinnabar moth |
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| (noun) a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury | - |
| cinnamene | (noun) a colorless oily liquid; the monomer for polystyrene | Synonyms: phenylethylene, styrene, vinylbenzene |
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| cinnamon | (noun) spice from the dried aromatic bark of the Ceylon cinnamon tree; used as rolled strips or ground | - |
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| (noun) tropical Asian tree with aromatic yellowish-brown bark; source of the spice cinnamon | Synonyms: Ceylon cinnamon, Ceylon cinnamon tree, Cinnamomum zeylanicum |
| (noun) aromatic bark used as a spice | Synonyms: cinnamon bark |
| circumnavigation | (noun) traveling around something (by ship or plane) | - |
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| cisterna | (noun) a sac or cavity containing fluid especially lymph or cerebrospinal fluid | Synonyms: cistern |
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| cognate | (noun) a word is cognate with another if both derive from the same word in an ancestral language | Synonyms: cognate word |
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| (noun) one related by blood or origin; especially on sharing an ancestor with another | Synonyms: blood relation, blood relative, sib |
| cognation | (noun) (anthropology) the condition of being related by blood | Synonyms: blood kinship, consanguinity |
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| (noun) line of descent traced through the maternal side of the family | Synonyms: enation, matrilineage |
| coinage | (noun) the act of inventing a word or phrase | Synonyms: neologism, neology |
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| (noun) a newly invented word or phrase | Synonyms: neologism, neology |
| (noun) coins collectively | Synonyms: metal money, mintage, specie |
| collagenase | (noun) any enzyme that catalyzes the hydrolysis of collagen and gelatin | - |
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| colonnade | (noun) structure consisting of a row of evenly spaced columns | - |
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| (noun) a structure composed of a series of arches supported by columns | Synonyms: arcade |
| combination | (noun) the act of combining things to form a new whole | Synonyms: combining, compounding |
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| (noun) the act of arranging elements into specified groups without regard to order | - |
| (noun) a collection of things that have been combined; an assemblage of separate parts or qualities | - |
| (noun) a group of people (often temporary) having a common purpose | - |
| (noun) a sequence of numbers or letters that opens a combination lock | - |
| (noun) an alliance of people or corporations or countries for a special purpose (formerly to achieve some antisocial end but now for general political or economic purposes) | - |
| (noun) a coordinated sequence of chess moves | - |
| commelina | (noun) any plant of the genus Commelina | - |
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| commination | (noun) a threat of divine punishment or vengeance | - |
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| (noun) prayers proclaiming God's anger against sinners; read in the Church of England on Ash Wednesday | - |
| commissionaire | (noun) a uniformed doorman | - |
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| commonage | (noun) property held in common | - |
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| commonality | (noun) sharing of common attributes | Synonyms: commonness |
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| (noun) a class composed of persons lacking clerical or noble rank | Synonyms: commonalty, commons |
| commonalty | (noun) a class composed of persons lacking clerical or noble rank | Synonyms: commonality, commons |
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| communalism | (noun) the practice of communal living and common ownership | - |
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| (noun) loyalty and commitment to the interests of your own minority or ethnic group rather than to society as a whole | - |
| companionability | (noun) suitability to be a companion | Synonyms: companionableness |
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| companionableness | (noun) suitability to be a companion | Synonyms: companionability |
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| compassionateness | (noun) a deep awareness of and sympathy for another's suffering | Synonyms: compassion |
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| complainant | (noun) a person who brings an action in a court of law | Synonyms: plaintiff |
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| compsognathus | (noun) very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria | - |
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| conacaste | (noun) tropical South American tree having a wide-spreading crown of bipinnate leaves and coiled ear-shaped fruits; grown for shade and ornament as well as valuable timber | Synonyms: elephant's ear, Enterolobium cyclocarpa |
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| concatenation | (noun) the act of linking together as in a series or chain | - |
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| (noun) a series of things depending on each other as if linked together | Synonyms: chain |
| (noun) the linking together of a consecutive series of symbols or events or ideas etc | - |
| (noun) the state of being linked together as in a chain; union in a linked series | - |
| concertina | (noun) free-reed instrument played like an accordion by pushing its ends together to force air through the reeds | - |
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| (noun) coiled barbed wire used as an obstacle | - |
| concessionaire | (noun) someone who holds or operates a concession | Synonyms: concessioner |
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| concubinage | (noun) cohabitation without being legally married | - |
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| condemnation | (noun) (law) the act of condemning (as land forfeited for public use) or judging to be unfit for use (as a food product or an unsafe building) | - |
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| (noun) (criminal law) a final judgment of guilty in a criminal case and the punishment that is imposed | Synonyms: conviction, judgment of conviction, sentence |
| (noun) an expression of strong disapproval; pronouncing as wrong or morally culpable | Synonyms: disapprobation |
| (noun) an appeal to some supernatural power to inflict evil on someone or some group | Synonyms: curse, execration |
| (noun) the condition of being strongly disapproved of | - |
| conditionality | (noun) the state of being conditional | - |
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| condonation | (noun) a pardon by treating the offender as if the offense had not occurred | - |
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| confectionary | (noun) a confectioner's shop | Synonyms: candy store, confectionery |
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| confessional | (noun) a booth where a priest sits to hear confessions | - |
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| congenator | (noun) an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) | Synonyms: congener, congeneric, relative |
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| conglutination | (noun) the union of diverse things into one body or form or group; the growing together of parts | Synonyms: coalescence, coalescency, coalition, concretion |
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| (noun) healing process involving the growing together of the edges of a wound or the growing together of broken bones | Synonyms: union |
| consonance | (noun) the property of sounding harmonious | Synonyms: harmoniousness |
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| (noun) the repetition of consonants (or consonant patterns) especially at the ends of words | Synonyms: consonant rhyme |
| consonant | (noun) a speech sound that is not a vowel | - |
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| (noun) a letter of the alphabet standing for a spoken consonant | - |
| consternation | (noun) fear resulting from the awareness of danger | Synonyms: alarm, dismay |
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| constitutional | (noun) a regular walk taken as a form of exercise | - |
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| constitutionalism | (noun) advocacy of a system of government according to constitutional principles | - |
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| (noun) a constitutional system of government (usually with a written constitution) | - |
| constitutionalist | (noun) an advocate of constitutional government | - |
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| consuetudinal | (noun) a manual describing the customs of a particular group (especially the ceremonial practices of a monastic order) | Synonyms: consuetudinary |
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| consuetudinary | (noun) a manual describing the customs of a particular group (especially the ceremonial practices of a monastic order) | Synonyms: consuetudinal |
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| contaminant | (noun) a substance that contaminates | Synonyms: contamination |
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| contamination | (noun) the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors | Synonyms: pollution |
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| (noun) the state of being contaminated | Synonyms: taint |
| (noun) a substance that contaminates | Synonyms: contaminant |
| conventionalisation | (noun) the act of conventionalizing; conforming to a conventional style | Synonyms: conventionalization |
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| conventionalism | (noun) orthodoxy as a consequence of being conventional | Synonyms: convention, conventionality |
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| conventionality | (noun) orthodoxy as a consequence of being conventional | Synonyms: convention, conventionalism |
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| (noun) unoriginality as a result of being too conventional | - |
| (noun) conformity with conventional thought and behavior | - |
| conventionalization | (noun) the act of conventionalizing; conforming to a conventional style | Synonyms: conventionalisation |
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| conversationalist | (noun) someone skilled at conversation | Synonyms: conversationist, schmoozer |
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| coordinate | (noun) a number that identifies a position relative to an axis | Synonyms: co-ordinate |
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| coordination | (noun) the regulation of diverse elements into an integrated and harmonious operation | - |
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| (noun) the skillful and effective interaction of movements | - |
| (noun) being of coordinate importance, rank, or degree | - |
| (noun) the grammatical relation of two constituents having the same grammatical form | - |
| coordinator | (noun) someone whose task is to see that work goes harmoniously | Synonyms: co-ordinator |
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| corbina | (noun) bluish-grey whiting of California coast | Synonyms: Menticirrhus undulatus |
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| corona | (noun) a long cigar with blunt ends | - |
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| (noun) (anatomy) any structure that resembles a crown in shape | - |
| (noun) the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse | Synonyms: aureole |
| (noun) an electrical discharge accompanied by ionization of surrounding atmosphere | Synonyms: corona discharge, corposant, electric glow, Saint Elmo's fire, Saint Elmo's light, Saint Ulmo's fire, Saint Ulmo's light, St. Elmo's fire |
| (noun) one or more circles of light seen around a luminous object | - |
| (noun) (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower | - |
| (noun) a viral disease caused by SARS-CoV-2 that caused a global pandemic in 2020 | Synonyms: 2019-nCoV acute respiratory disease, coronavirus, coronavirus disease 2019, COVID-19, novel coronavirus pneumonia, Wuhan coronavirus, Wuhan flu, Wuhan pneumonia, Wuhan virus |
| coronach | (noun) a song or hymn of mourning composed or performed as a memorial to a dead person | Synonyms: dirge, lament, requiem, threnody |
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| coronal | (noun) flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes | Synonyms: chaplet, garland, lei, wreath |
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| coronary | (noun) obstruction of blood flow in a coronary artery by a blood clot (thrombus) | Synonyms: coronary thrombosis |
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| coronation | (noun) the ceremony of installing a new monarch | Synonyms: enthronement, enthronisation, enthronization, investiture |
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