bn:00078919n
Noun Concept
Categories: All articles needing additional references, Optical phenomena, Shadows
EN
umbra
EN
A region of complete shadow resulting from total obstruction of light WordNet 3.0
Definitions
Relations
Sources
EN
A region of complete shadow resulting from total obstruction of light WordNet 3.0 & Open English WordNet
IS A
WordNet 3.0 & Open English WordNet
EN
Wikipedia Redirections
EN