Nouns starting with H

• hydroxybenzoic acid — Noun – English ～ a crystalline derivative of benzoic acid
• hydroxybutyric acid — Noun – English ～ hydroxy derivative of butyric acid
• hydroxychloroquine — Noun – English ～ anti-inflammatory drug (trade name Plaquenil) used in the treatment of rheumatoid arthritis and malaria and lupus erythematosus
• hydroxyl group — Noun – English ～ the monovalent group -OH in such compounds as bases and some acids and alcohols
• hydroxyl — Noun – English ～ the monovalent group -OH in such compounds as bases and some acids and alcohols
• hydroxyl — Noun – Danish ～ atomgruppen -OH
• hydroxylgruppe — Noun – Danish ～ atomgruppen -OH
• hydroxymethyl — Noun – English ～ a methyl with hydroxide replacing the hydrogen atoms
• hydroxyproline — Noun – English ～ a crystalline amino acid obtained from gelatin or collagen
• hydroxytetracycline — Noun – English ～ a yellow crystalline antibiotic (trademark Terramycin) obtained from a soil actinomycete; used to treat various bacterial and rickettsial infections
• hydroxyzine hydrochloride — Noun – English ～ a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness
• hydroxyzine — Noun – English ～ a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness
• Hydrozoa — Noun – English ～ coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
• hydrozoan — Noun – English ～ colonial coelenterates having the polyp phase dominant
• Hydrus — Noun – English ～ a constellation in the southern hemisphere near the south celestial pole
• Hyemoschus aquaticus — Noun – English ～ largest chevrotain; of marshy areas of west Africa
• Hyemoschus — Noun – English ～ water chevrotains
• hyena — Noun – English ～ doglike nocturnal mammal of Africa and southern Asia that feeds chiefly on carrion
• hyena dog — Noun – English ～ a powerful doglike mammal of southern and eastern Africa that hunts in large packs; now rare in settled area
• Hygeia — Noun – English ～ (Greek mythology) the goddess of health; daughter of Aesculapius and sister of Panacea

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