umbra

Meanings

Plural: umbrae, umbras, umbræ

Noun

• a region of complete shadow resulting from total obstruction of light
• The fully shaded inner region of a shadow cast by an opaque object.
• 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.
• The central region of a sunspot.
• A shadow.
• An uninvited guest brought along by one who was invited.
• One of the family Umbridae of mudminnows.
• One of genus Umbrina of drums (family Sciaenidae).
• An element of the umbral calculus.