| avirulent | (adjective) not virulent; unable to produce disease | - |
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| cerulean | (adjective) of a deep somewhat purplish blue color similar to that of a clear October sky | Synonyms: azure, bright blue, sky-blue |
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| mucopurulent | (adjective) containing or composed of mucus and pus | - |
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| nonpurulent | (adjective) not containing pus | - |
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| puberulent | (adjective) covered with fine soft hairs or down | Synonyms: downy, pubescent, sericeous |
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| purulent | (adjective) containing pus | Synonyms: pussy |
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| ruled | (adjective) subject to a ruling authority | - |
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| virulent | (adjective) infectious; having the ability to cause disease | - |
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| (adjective) extremely poisonous or injurious; producing venom | Synonyms: deadly, venomous |
| (adjective) harsh or corrosive in tone | Synonyms: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, vitriolic |