air pocket

Thân thiện

The plane hit an air pocket and dropped sharply.

Definition

Noun: 1. A local region of low pressure or descending air that causes a plane to lose height suddenly: An air pocket is a specific, localized area in the atmosphere where the air density is lower, causing an aircraft to drop or lose altitude abruptly during flight.

Usage

The term is used almost exclusively in the context of aviation to describe a specific type of atmospheric disturbance encountered by aircraft. * It functions as a countable noun (e.g., an air pocket, several air pockets). * It is commonly used with verbs like hit, encounter, experience, or drop into.

Examples

• Noun:
  • The plane shook violently after hitting a sudden air pocket.
  • Pilots are trained to handle the turbulence caused by air pockets.
  • We experienced a brief drop when the aircraft went through an air pocket.

Advanced Usage

• While often used interchangeably with "turbulence" in casual conversation, an air pocket specifically refers to a or area of descending air that causes a sudden loss of altitude, which is one type of turbulence.
• The term is also used metaphorically to describe an unexpected setback or a sudden drop in progress, performance, or mood.
  • The team hit an air pocket in the second half, allowing their opponents to score twice.

Variants and Related Words

• Turbulence (n): A more general term for irregular and violent movements of air, which can include air pockets, wind shear, and thermal currents.
• Downdraft (n): A column of sinking air, which is the physical phenomenon often described as an air pocket.
• Clear-air turbulence (CAT) (n): A specific, often invisible type of turbulence that can occur in cloudless skies, which may include conditions felt as air pockets.

Synonyms

• Downdraft
• Atmospheric disturbance (general)
• Turbulence (general)

Related Idioms and Phrases

• To hit an air pocket: To encounter a sudden problem or setback.
  • The company's sales hit an air pocket during the economic downturn.

Học thuật

Noun

1. a local region of low pressure or descending air that causes a plane to lose height suddenly

Từ đồng nghĩa

• pocket
• air hole