/dəʊs ||; dos/noun[C] 1 an amount of medicine that you take at one time 一剂，一服（药物）: You should take a large dose of this cough medicine before going to bed. 这咳嗽药睡前应多服一些。 ☞Look at overdose. 参看overdose。
2 an amount of sth, especially sth unpleasant 某数量的事物（尤指令人不快的）: a dose of the flu 一场流感I can only stand him in small doses. 我对他只能容忍一会儿。