skylight

Meanings

1. 1
   noun

   a window in a roof to admit daylight

2. 2
   noun

   A window, dome, or opening in the roof or ceiling, to admit natural light.

3. 3
   noun

   Diffuse sky radiation—solar radiation reaching the earth's surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere.

4. 4
   noun

   A hole in the upper part of a lava tube, yielding a view of the lava within.

From sky + light.

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