Definition

1. Noun:
   • Altimeter: An instrument used in aircraft and mountaineering to measure altitude, or height above a fixed level (usually sea level or ground level).

Usage Examples

• Noun:
  • Phi công kiểm tra cao độ kế trước khi hạ cánh. (The pilot checked the altimeter before landing.)
  • Nhà leo núi dùng cao độ kế để xác định vị trí của mình trên núi. (The mountaineer used an altimeter to determine his position on the mountain.)

Advanced Usage

• "cao độ kế áp kế": A barometric altimeter, which determines altitude by measuring atmospheric pressure.
  • Hầu hết máy bay sử dụng cao độ kế áp kế. (Most aircraft use barometric altimeters.)
• "cao độ kế radar": A radar altimeter, which measures height above the ground directly using radio waves.
  • Cao độ kế radar rất quan trọng cho việc hạ cánh tự động. (The radar altimeter is crucial for automatic landing.)

Variants and Related Words

• Altimetre: A direct loanword and synonym from French, identical in meaning to "cao độ kế".

Synonyms

• Altimeter: The direct and most common English equivalent.
• Height indicator: A descriptive synonym.

Notes on Usage

• Technical Term: "Cao độ kế" is a specialized technical term. In everyday conversation, Vietnamese speakers might describe its function (e.g., - height measurement gauge) rather than use the specific term.
• Field of Use: This word is primarily used in contexts related to aviation, aerospace, meteorology, and mountaineering.

1. Altimetre