- an excessive and dangerous dose of a drug（药物）过量; 危险的剂量：
she took an overdose the day her husband left.
丈夫离开那天她服用了过量药物。
no obj.
1- take an overdose of a drug用药过量：
he was admitted to hospital after overdosing on cocaine.
他在过量使用可卡因后被送入医院。
1.1
- with obj. give an overdose to给…服过量的药。
派生词