omnidirectional

Thân thiện

An omnidirectional antenna sits on the roof of a house.

Definition

1. Adjective:
   • Not directional; receiving or transmitting equally in all directions: Describes a device, signal, or system that operates uniformly across a full 360-degree range, without a preferred or focused direction.

Usage Examples

• Adjective:
  • The weather station uses an omnidirectional microphone to capture ambient sound from all around.
  • For general Wi-Fi coverage in a home, an omnidirectional router antenna is often the best choice.
  • The radio beacon was omnidirectional, allowing ships to locate it from any bearing.

Advanced Usage

• Technical Context: In acoustics, telecommunications, and radar, "omnidirectional" precisely describes a radiation or sensitivity pattern that is essentially circular in a given plane (typically horizontal).
  • The design goal was to create a truly omnidirectional speaker that projects sound evenly throughout the room.

Variants and Related Words

• Omnidirectionally (adverb): In an omnidirectional manner.
  • The signal is broadcast omnidirectionally.
• Directional (adjective): The direct antonym, meaning operating most effectively in, or sensitive to, a particular direction.

Synonyms

• Nondirectional: Lacking a specific direction; often used interchangeably in technical contexts.
• All-directional: Functioning in every direction (less common technical term).

Antonyms

• Directional: Operating in or sensitive to a specific direction.
• Unidirectional: Operating in a single direction.
• Bidirectional: Operating in two opposite directions.

Học thuật

Adjective

1. not directional
   • omnidirectional antenna