suction

/ˈsʌk.ʃən/ (bre, ipa) · /ˈsʌk.ʃən/ (ame, ipa) · /ˈsək-shən/ (ame, mw) · /ˈsʌkʃn/ (bre, ipa) · /ˈsʌkʃn/ (ame, ipa)

suction — noun

1. the physical effect that happens when air is removed from an enclosed space, cre

1.名詞B2
釋義

the physical effect that happens when air is removed from an enclosed space, creating lower pressure that pulls liquids, gases, or objects into that space or makes surfaces press tightly together

例句

The vacuum cleaner creates strong suction that pulls dirt and dust from the carpet.

creates suction + object (dirt, dust)

Sivan pressed the hook onto the bathroom wall until the suction held it in place.

suction holds objects against a surface

同義詞
  • vacuum

    refers to the empty space with no matter, whereas 'suction' is the force created by the pressure difference

  • pull

    more general; any drawing force, not specifically from pressure difference

  • drawing force

    more descriptive and less concise

反義詞
  • pressure

    positive force that pushes outward rather than pulling inward

  • push

    opposite direction of force

用法筆記

Uncountable noun; do not use with 'a' or in plural form. Used in both everyday contexts (straws, suction cups) and technical ones (pumps, medical equipment).

常見錯誤

❌I heard a loud suction.
✅I heard a loud sucking sound.
💡'suction' is an uncountable process, not a loud sound.
❌There were many suctions on the surface.
✅There were many suction cups on the surface.
💡'suction' is uncountable; describe the physical objects instead.

suction — verb