deflector

deflector — noun

1. a part or device that makes air, water, smoke, light, or another moving force go

1.名詞C1
釋義

a part or device that makes air, water, smoke, light, or another moving force go in a different direction

例句

The roof deflector sent rain away from the open window.

function: send rain away from an opening

A small deflector by the fan kept smoke off the stage.

collocation: keep smoke off [area]

同義詞
  • shield

    broader; protects from force or spray, but does not always redirect it

  • baffle

    more technical; often a part inside equipment that controls flow

  • guard

    focuses on protection or blocking contact, not on changing direction

文法句型

a + deflector + on/under + [vehicle or machine part]

[verb] + a + deflector + to + redirect + [air/water/smoke]

用法筆記

Usually refers to a fixed part on a vehicle, machine, roof, or hood rather than a separate hand-held object. Common with air, water, smoke, spray, and heat.

常見錯誤

❌The mirror works as a deflector for the headlight beam.
✅The mirror reflects the headlight beam.
💡A deflector changes the direction of a moving flow; a mirror reflects light.