1. The quality or property of being directed toward a specific point, object, or goal; the degree to which something is focused or concentrated in a particular direction.
Usage: technical; commonly used in physics, engineering, and telecommunications
2. In acoustics and antenna theory, a measure of how much of the radiated or received energy is concentrated in a particular direction compared to an omnidirectional source.
Usage: technical; specialized in engineering and physics

Examples

• The directivity of the microphone allows it to pick up sound primarily from the front.
• Engineers measured the directivity of the antenna to ensure optimal signal transmission.
• The speaker's directivity was improved by adding a reflector behind it.
• High directivity in a radar system helps distinguish targets in specific directions.
• The directivity of the light beam made it suitable for focused applications.