dilation

名词 dilation:

1. a lengthy discussion (spoken or written) on a particular topic
2. the act of expanding an aperture
   同义词：dilatation

di.la.tion

n.（名词）
The act of expanding or the state of being expanded.
膨胀：扩张的动作或状态
Medicine See dilatation
【医学】 参见 dilatation