Tetravu青四环素, 青哌四环素, 青霉素V甲哌四环素tetran.脂鲤（南美产的热带鱼）pref.四；四原；四基tetramanno holoside四甘露聚糖正苷类tetrahedral cluster四面体簇Tetragnatha extensan.直伸肖蛸tetrafluoro-resin四氟树脂tetrahexyl ammonium四己基铵Tetramethylpyrazien川芎嗪tetralogy of Fallot法乐四联症,紫绀四联症（最常见的在青紫型先天性心脏病）tetrahydroxy phenol四羟基苯tetrahydrolipstatin全合成tetrahydrobiopterin四氢生物蝶呤