| aconite | (noun) any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers | - |
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| bocconia | (noun) small Central American tree having loose racemes of purple-tinted green flowers | Synonyms: Bocconia frutescens, tree celandine |
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| (noun) herb of China and Japan widely cultivated for its plumelike panicles of creamy white flowers | Synonyms: Macleaya cordata, plume poppy |
| conic | (noun) (geometry) a curve generated by the intersection of a plane and a circular cone | Synonyms: conic section |
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| conidiophore | (noun) a specialized fungal hypha that produces conidia | - |
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| conidiospore | (noun) an asexually produced fungal spore formed on a conidiophore | Synonyms: conidium |
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| conidium | (noun) an asexually produced fungal spore formed on a conidiophore | Synonyms: conidiospore |
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| conifer | (noun) any gymnospermous tree or shrub bearing cones | Synonyms: coniferous tree |
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| conima | (noun) a gum resin from the poison hemlock, Conium maculatum | - |
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| glauconite | (noun) a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand | - |
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| laconicism | (noun) terseness of expression | Synonyms: laconism |
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| laconism | (noun) terseness of expression | Synonyms: laconicism |
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| meconium | (noun) thick dark green mucoid material that is the first feces of a newborn child | - |
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| pneumoconiosis | (noun) chronic respiratory disease caused by inhaling metallic or mineral particles | Synonyms: pneumonoconiosis |
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| pneumonoconiosis | (noun) chronic respiratory disease caused by inhaling metallic or mineral particles | Synonyms: pneumoconiosis |
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| syconium | (noun) the fleshy multiple fruit of the fig consisting of an enlarged hollow receptacle containing numerous fruitlets | - |
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| taconite | (noun) a variety of chert containing magnetite and hematite; mined as a low-grade iron ore | - |
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| tobacconist | (noun) a shop that sells pipes and pipe tobacco and cigars and cigarettes | Synonyms: tobacco shop, tobacconist shop |
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| (noun) a retail dealer in tobacco and tobacco-related articles | - |
| zirconia | (noun) a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes | Synonyms: zirconium dioxide, zirconium oxide |
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| zirconium | (noun) a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon | Synonyms: atomic number 40, Zr |
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