aneroid

/ænərɔid/

Thân thiện

An aneroid barometer hangs on the wall of a weather station.

Definition

1. Adjective:
   • Containing no liquid or actuated without the use of liquid: Describes a device or mechanism that operates without relying on fluids.
2. Noun:
   • Aneroid barometer: A type of barometer that measures atmospheric pressure using a sealed, flexible metal box from which most air has been removed, rather than using a liquid column.

Usage Examples

• Adjective:
  • The aneroid mechanism is less fragile than a mercury-based one.
  • Many modern pressure gauges use an aneroid design.
• Noun (Aneroid barometer):
  • The hiker checked his aneroid to predict the weather.
  • An aneroid is more portable than a traditional mercury barometer.

Advanced Usage

• Technical Context: In meteorology and aviation, "aneroid" specifically refers to instruments that measure pressure mechanically, crucial for altimeters and weather forecasting equipment.
  • The aircraft's altimeter is based on an aneroid capsule.

Variants and Related Words

• Aneroid barometer (n): The full term for the device, often shortened to "aneroid."
• Aneroid capsule (n): The key sealed metal component inside an aneroid barometer that expands and contracts with pressure changes.

Synonyms

• Adjective: Dry, non-liquid, mechanical.
• Noun (for the device): Pressure gauge, barometer (when context is clear).

Notes on Meaning

• The term is almost exclusively used in technical contexts related to pressure measurement. The adjective form is rarely used outside of describing such instruments (e.g., aneroid gauge, aneroid cell).

Học thuật

Adjective

1. containing no liquid or actuated without the use of liquid
   • aneroid barometer

Noun

1. a barometer that measures pressure without using fluids

Từ đồng nghĩa

• aneroid barometer