tetra-表示"四"之义tetran.脂鲤（南美产的热带鱼）pref.四；四原；四基tetracycline phosphate complex四环素磷酸复盐tetracaine ophthalmic ointment地卡因眼膏tetracycline guaiacolsulfanate愈酚磺酸四环素Tetra-butyl ammonium bromide四丁基溴化铵tetrahydrobiopterin deficiency四氢生物蝶呤缺乏症tetramethyl-p-quaterphenyln.四甲基对四联苯tetrahydrozoline hydrochloride盐酸四氢唑啉tetracycline dodecyl sulfamate四环素十二烷氨基磺酸酯<抗生素类药>tetraethylene glycol dinitrate三缩四乙二醇二硝酸酯tetragonal scalenohedral class正方偏三角面体类