dilatation
/ˌdaɪləˈteɪʃən/noun
mass noun
1- chiefly Medicine & Physiology the process of becoming dilated【主医, 主生理】扩张。
1.1
- the action of dilating a vessel or opening(对容器或开口的)扩张。
1.2
- count noun a dilated part of a hollow organ or vessel(中空器官或容器的)扩张部分。
词源
late Middle English: via Old French from late Latin dilatatio(n-), from the verb dilatare (see DILATE).