English Dictionary

suction

/ˈsʌkʃən/

verb

To create an imbalance in pressure between one space and another in order to draw matter between the spaces. / To draw out the contents of a space.

The dentist used a suction device to remove excess saliva.

意味（1）

To create an imbalance in pressure between one space and another in order to draw matter between the spaces.

意味（2）

To draw out the contents of a space.