[ 'ʌmbrə ]
■ noun ( plural ~s or ~e -bri: )
1》 the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing totality in an eclipse.
2》 Astronomy the dark central part of a sunspot.
Derivatives
~l adjective
Origin
C16 (denoting a ghost): from L., lit. 'shade'.