umbra

1. The fully shaded inner region of a shadow cast by an opaque object.

   Kernschatten

   a region of complete shadow resulting from total obstruction of light

2. The fully shaded inner region of a shadow cast by an opaque object.

   The area on the earth or moon experiencing the total phase of an eclipse.

3. The central region of a sunspot.

   Umbra

4. (literary)A shadow.

5. One of the family Umbridae of mudminnows.

6. One of genus Umbrina of drums (family Sciaenidae).

7. An element of the umbral calculus.

8. (archaic)An uninvited guest brought along by one who was invited.

regular