| adiaphoron | (noun) (Stoic philosophy) a matter having no moral merit or demerit. | - |
|---|
| (noun) a religious ceremonial or ritual observance that is held to be an affair of the individual conscience because it is neither forbidden nor enjoined by the scriptures. | - |
| boron | (noun) a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder | Synonyms: atomic number 5, B |
|---|
| corona | (noun) a long cigar with blunt ends | - |
|---|
| (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 |
|---|
| coronal | (noun) flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes | Synonyms: chaplet, garland, lei, wreath |
|---|
| coronary | (noun) obstruction of blood flow in a coronary artery by a blood clot (thrombus) | Synonyms: coronary thrombosis |
|---|
| coronation | (noun) the ceremony of installing a new monarch | Synonyms: enthronement, enthronisation, enthronization, investiture |
|---|
| coronavirus | (noun) a viral disease caused by SARS-CoV-2 that caused a global pandemic in 2020 | Synonyms: 2019-nCoV acute respiratory disease, corona, coronavirus disease 2019, COVID-19, novel coronavirus pneumonia, Wuhan coronavirus, Wuhan flu, Wuhan pneumonia, Wuhan virus |
|---|
| coroner | (noun) a public official who investigates by inquest any death not due to natural causes | Synonyms: medical examiner |
|---|
| coronet | (noun) margin between the skin of the pastern and the horn of the hoof | - |
|---|
| (noun) a small crown; usually indicates a high rank but below that of sovereign | - |
| coronilla | (noun) any of various plants of the genus Coronilla having purple or pink or yellow flowers in long axillary heads or umbels | - |
|---|
| coronion | (noun) the craniometric point at the tip of the coronoid process of the mandible | - |
|---|
| moron | (noun) a person of subnormal intelligence | Synonyms: changeling, cretin, half-wit, idiot, imbecile, retard |
|---|
| moronity | (noun) mild mental retardation | Synonyms: mental deficiency |
|---|
| oxymoron | (noun) conjoining contradictory terms (as in `deafening silence') | - |
|---|
| phoronid | (noun) hermaphrodite wormlike animal living in mud of the sea bottom | - |
|---|