Tetracel是一种生物制品(吸附白喉、破伤风类毒素、无细胞百日咳疫苗和乙型嗜血杆菌四联疫苗)tetran.脂鲤（南美产的热带鱼）pref.四；四原；四基Tetraclitella chinensisn.中华小笠藤壶tetraploid black locust四倍体刺槐tetraorganodistannoxane四烃基二锡氧烷tetrahydro-fluorenone四氢芴酮tetraethy orthosilicate正硅酸乙酯Tetrahydrophenobarbital环巴比妥, 环己烯基乙基巴比妥tetramethylholarrhimine四甲基止泻木明tetracycline resistance抗四环素tetramethyl-uric acid四甲基尿酸tetrahydroanthraquinone四氢蒽醌