PENUM'BRA, noun [Latin pene, almost, and umbra, shade.] In astronomy, a partial shade or obscurity on the margin of the perfect shade in an eclipse, or between the perfect shade, where the light is entirely intercepted, and the full light.
Conteúdo
Direitos e fontes
Consulte informações de fonte, licença e atribuição deste conteúdo.
Conteúdo
Webster's Dictionary 1828
American Dictionary of the English Language, Noah Webster, 1828.