| trabecula | (noun) rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ (as in the spleen) | - |
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| umbrella | (adjective) covering or applying simultaneously to a number of similar items or elements or groups | - |
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| (noun) a formation of military planes maintained over ground operations or targets | - |
| (noun) having the function of uniting a group of similar things | - |
| (noun) a lightweight handheld collapsible canopy | - |
| uvula | (noun) a small pendant fleshy lobe at the back of the soft palate | - |
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| vallecula | (noun) (anatomy) any furrow or channel on a bodily structure or part | Synonyms: groove |
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| valvula | (noun) a small valve | Synonyms: valvelet, valvule |
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| vanilla | (adjective) flavored with vanilla extract | - |
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| (adjective) plain and without any extras or adornments | - |
| (noun) a distinctive fragrant flavor characteristic of vanilla beans | - |
| (noun) a flavoring prepared from vanilla beans macerated in alcohol (or imitating vanilla beans) | Synonyms: vanilla extract |
| (noun) any of numerous climbing plants of the genus Vanilla having fleshy leaves and clusters of large waxy highly fragrant white or green or topaz flowers | - |
| varicella | (noun) an acute contagious disease caused by herpes varicella zoster virus; causes a rash of vesicles on the face and body | Synonyms: chickenpox |
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| variola | (noun) a highly contagious viral disease characterized by fever and weakness and skin eruption with pustules that form scabs that slough off leaving scars | Synonyms: smallpox, variola major |
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| venula | (noun) a minute vein continuous with a capillary | Synonyms: capillary vein, venule |
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| villa | (noun) pretentious and luxurious country residence with extensive grounds | - |
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| (noun) country house in ancient Rome consisting of residential quarters and farm buildings around a courtyard | - |
| (noun) detached or semidetached suburban house | - |
| viola | (noun) any of the numerous plants of the genus Viola | - |
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| (noun) a bowed stringed instrument slightly larger than a violin, tuned a fifth lower | - |
| vizsla | (noun) Hungarian hunting dog resembling the Weimaraner but having a rich deep red coat | Synonyms: Hungarian pointer |
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| vorticella | (noun) any of various protozoa having a transparent goblet-shaped body with a retractile stalk | - |
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| weigela | (noun) deciduous shrub widely cultivated for its white or pink or red flowers | Synonyms: Weigela florida |
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| zonula | (noun) small beltlike zone | Synonyms: zonule |
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