1. third-person singular simple present indicative form of prefocus; to focus or adjust in advance
Usage: technical; often used in photography, optics, or computing contexts

Examples

• The camera prefocuses on the subject before the shutter button is fully pressed.
• Modern autofocus systems prefocus the lens to reduce lag time.
• The software prefocuses the image sensor to improve low-light performance.
• She prefocuses her attention on the most critical tasks each morning.
• The optical system prefocuses the beam to ensure maximum clarity.