hydroxytetracycline | (noun) a yellow crystalline antibiotic (trademark Terramycin) obtained from a soil actinomycete; used to treat various bacterial and rickettsial infections | Synonyms: oxytetracycline, oxytetracycline hydrochloride, Terramycin |
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hydroxyzine | (noun) a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness | Synonyms: Atarax, hydroxyzine hydrochloride, Vistaril |
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hydrozoan | (noun) colonial coelenterates having the polyp phase dominant | Synonyms: hydroid |
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