| acanthus | (noun) any plant of the genus Acanthus having large spiny leaves and spikes or white or purplish flowers; native to Mediterranean region but widely cultivated | - |
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| aeschynanthus | (noun) a plant of the genus Aeschynanthus having somewhat red or orange flowers and seeds having distinctive hairs at base and apex | - |
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| agapanthus | (noun) any of various plants of the genus Agapanthus having umbels of showy blue to purple flowers | Synonyms: lily of the Nile |
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| ailanthus | (noun) any of several deciduous Asian trees of the genus Ailanthus | - |
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| bronchus | (noun) either of the two main branches of the trachea | Synonyms: bronchial tube |
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| bryanthus | (noun) procumbent Old World mat-forming evergreen shrub with racemes of pinkish-white flowers | - |
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| canthus | (noun) either of the corners of the eye where the upper and lower eyelids meet | - |
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| cirrhus | (noun) usually coiled | Synonyms: cirrus |
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| clianthus | (noun) any of various shrubs or vines of the genus Clianthus having compound leaves and pea-like red flowers in drooping racemes | Synonyms: glory pea |
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| compsognathus | (noun) very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria | - |
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| deinonychus | (noun) swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous | - |
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| epicanthus | (noun) a vertical fold of skin over the nasal canthus; typical for many east Asian peoples; sometimes occurs in Down's syndrome | Synonyms: epicanthic fold |
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| helianthus | (noun) any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays | Synonyms: sunflower |
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| philadelphus | (noun) any of various chiefly deciduous ornamental shrubs of the genus Philadelphus having white sweet-scented flowers, single or in clusters; widely grown in temperate regions | - |
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| plectranthus | (noun) any of various ornamental plants of the genus Plectranthus | - |
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| polyanthus | (noun) florists' primroses; considered a complex hybrid derived from oxlip, cowslip, and common primrose | Synonyms: Primula polyantha |
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| rhonchus | (noun) a sound like whistling or snoring that is heard with a stethoscope during expiration as air passes through obstructed channels | - |
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| schizanthus | (noun) any plant of the genus Schizanthus having finely divided leaves and showy variegated flowers | Synonyms: butterfly flower, poor man's orchid |
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| scyphus | (noun) an ancient Greek drinking cup; two handles and footed base | - |
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| strophanthus | (noun) any of various shrubs or small trees of the genus Strophanthus having whorled leaves and showy flowers of various colors in dense and corymbose clusters; some have poisonous seeds | - |
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| thus | (noun) an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation | Synonyms: frankincense, gum olibanum, olibanum |
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| tophus | (noun) an incrustation that forms on the teeth and gums | Synonyms: calculus, tartar |
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| (noun) a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout | Synonyms: chalkstone |
| typhus | (noun) rickettsial disease transmitted by body lice and characterized by skin rash and high fever | Synonyms: typhus fever |
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