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a yellow crystalline antibiotic (trademark Terramycin) obtained from a soil actinomycete

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a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness

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a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness

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coelenterates typically having alternation of generations

hydro

colonial coelenterates having the polyp phase dominant