| campanula | (noun) any of various plants of the genus Campanula having blue or white bell-shaped flowers | Synonyms: bellflower |
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| cannula | (noun) a small flexible tube inserted into a body cavity for draining off fluid or introducing medication | - |
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| inula | (noun) any plant of the genus Inula | - |
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| lunula | (noun) a crescent-shaped metal ornament of the Bronze Age | - |
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| (noun) the crescent-shaped area at the base of the human fingernail | Synonyms: half-moon, lunule |
| planula | (noun) the flat ciliated free-swimming larva of hydrozoan coelenterates | - |
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| ranula | (noun) a cyst on the underside of the tongue | - |
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| venula | (noun) a minute vein continuous with a capillary | Synonyms: capillary vein, venule |
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| zonula | (noun) small beltlike zone | Synonyms: zonule |
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