noun
- plural of umbra; the completely dark central portions of shadows cast by opaque objects
Usage: astronomy; physics
Examples
- The eclipse created multiple umbrae across the Earth’s surface.
- Scientists studied the umbrae cast by the moon during the solar eclipse.
- The umbrae were clearly visible against the bright background.
- Multiple objects created overlapping umbrae in the experiment.
- The photographer captured the sharp edges of the umbrae.
- During the transit, the planet’s umbrae moved across the star’s surface.