dilate

1. V-T/V-I When things such as blood vessels or the pupils of your eyes dilate or when something dilates them, they become wider or bigger. 使擴大; 擴大

At night, the pupils dilate to allow in more light. 晚上，瞳孔放大以便讓更多的光線射入。

2. dilatedADJ 擴大的

His eyes seemed slightly dilated. 他的雙眼瞳孔似乎稍微擴大了些。