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Umbra
01
umbra
the part of a shadow that is completely dark; caused by acute light blockage
Esempio
In a total solar eclipse, the umbra creates complete darkness.
The umbra of the building provided shade from the hot sun.
During the eclipse, the moon cast an umbra on the Earth's surface.
The shadow's umbra was clearly defined against the bright background.
Standing in the umbra of the tree, they escaped the summer heat.
