aerodynamic

/ˌeərəʊdaɪˈnæmɪk/ (bre, ipa) · [ˌɛrodaɪnˈæmɪk] /ˌerəʊdaɪˈnæmɪk/ (ame, ipa) · [ˌɛrodaɪnˈæmɪk] /¦er-ō-dī-¦na-mik/ (ame, mw)

aerodynamic — adjective

  • aerodynamicpositive
  • more aerodynamiccomparative
  • most aerodynamicsuperlative

1. designed with a smooth, curved outer surface so that air flows over or around th

1.形容詞B2
釋義

designed with a smooth, curved outer surface so that air flows over or around the object easily, which reduces drag and improves speed or energy efficiency — for example, a streamlined car, bicycle helmet, or train.

例句

Samir chose an aerodynamic racing bike for the long-distance competition.

collocation: aerodynamic racing bike

The new bullet train's aerodynamic shape helps it reach higher speeds while using less energy.

collocation: aerodynamic shape

同義詞
  • streamlined

    nearly identical meaning; slightly more common in everyday English for describing cars, trains, and boats

  • sleek

    emphasises smoothness and elegance as well as low resistance; often used for appearance rather than strict engineering performance

  • slippery

    informal; describes something that slides through air easily, but less precise

反義詞
  • boxy

    square-shaped with flat surfaces that create high air resistance

  • bulky

    large and awkward in shape, causing drag

文法句型

aerodynamic + noun

be/look/seem + aerodynamic

highly/very/extremely + aerodynamic

用法筆記

This is the most frequent everyday sense. It focuses on the visible design feature of low air resistance. Frequently used with intensifiers like 'very', 'highly', or 'extremely'. ⚠️ Objects that are small, round, or flat are NOT aerodynamic — the shape must actively guide air past the surface.

常見錯誤

❌Paper airplanes are not aerodynamic.
✅Paper airplanes are simple, but their folded shape can be quite aerodynamic.
💡Even a simple paper airplane is designed to glide; aerodynamic describes any shape that reduces air resistance.
❌The rock is aerodynamic because it is small and light.
✅The rock is small and light, but its irregular shape creates a lot of air resistance
💡it is not aerodynamic.' — Aerodynamic depends on shape, not size or weight.

2. relating to the branch of physics that studies how gases move and how objects su

2.形容詞B2
釋義

relating to the branch of physics that studies how gases move and how objects such as planes, cars, or birds travel through air.

例句

The engineering team studied the aerodynamic forces acting on the new aircraft wing.

collocation: aerodynamic forces

Professor Nicholas gave a lecture on aerodynamic theory to first-year aerospace students.

collocation: aerodynamic theory

同義詞
  • aeronautical

    broader field covering all aspects of aircraft design and operation, not just air movement science

  • fluid-dynamic

    more technical term that includes liquids as well as gases

文法句型

aerodynamic + noun

be + aerodynamic

用法筆記

Distinguish from sense 1: this sense describes the scientific study of air movement, not the physical design quality of an object. ⚠️ Attributive use (aerodynamic + noun) is much more common than predicative use (is aerodynamic).

常見錯誤

❌A hot air balloon is aerodynamic because it floats in the sky.
✅A hot air balloon floats because hot air is lighter than cold air, but its round shape creates a lot of drag
💡it is not aerodynamic.' — Aerodynamic describes how air flows around an object, not whether something can float or rise.