1. blocking or hiding something from view, especially light
Usage: technical; astronomy

Examples

• The occulting disk blocked the bright star so astronomers could study its dimmer companion.
• An occulting lighthouse produces flashes by periodically blocking its beam.
• The telescope used an occulting coronagraph to observe the sun’s corona.
• Occulting binary stars appear to dim when one star passes in front of the other.
• The occulting edge of the moon created a perfect solar eclipse.
• Scientists used an occulting technique to reduce glare from the bright object.