| coarctation | (noun) (biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta | - |
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| (noun) tight or narrow compression | Synonyms: constriction |
| coarseness | (noun) looseness or roughness in texture (as of cloth) | Synonyms: nubbiness, tweediness |
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| (noun) the quality of being composed of relatively large particles | Synonyms: graininess, granularity |
| (noun) the quality of lacking taste and refinement | Synonyms: commonness, grossness, raunch, vulgarism, vulgarity |
| (noun) language or humor that is down-to-earth | Synonyms: saltiness |