penumbra 的定义
plural pe·num·brae [pi-nuhm-bree], /pɪˈnʌm bri/, pe·num·bras.
- Astronomy. the partial or imperfect shadow outside the complete shadow of an opaque body, as a planet, where the light from the source of illumination is only partly cut off.Compare umbra. the grayish marginal portion of a sunspot.Compare umbra.
- a shadowy, indefinite, or marginal area: a penumbra of secrecy.
- U.S. Law. a right or set of rights implicit but not expressed in the U.S. Constitution or Bill of Rights: The principle of the penumbra protects against an imperfect, or incomplete, enumeration of rights.
penumbra 近义词
等同于 shadow
penumbra 的近义词 13 个
penumbra 的反义词 3 个
等同于 eclipse
penumbra 的近义词 13 个
- concealment
- darkening
- decline
- diminution
- dimming
- extinction
- obliteration
- occultation
- shading
- shroud
- veil
- extinguishment
- obscuration
penumbra 的反义词 1 个
等同于 shade
更多penumbra例句
- Yes, both injuries are experienced during a traumatic event; however, the psychological penumbra is very different.
- In person, Waltz is equally charming, but without the penumbra of menace that comes with having Nazi goons just outside the door.
- It formed, as it were, a penumbra of fine shrilling, and could be heard for many streets in advance.
- The penumbra will last quite a long time yet, but it will gradually get fainter and fainter.
- And the concert ended, and soon they were alone together in the flower-filled, fragrant penumbra of the moving carriage.
- He has touched even the dark penumbra of treason; that could not but risk the sum of his other strivings.
- This portion was the kernel of the inheritance, surrounded by a wide penumbra of more feeble light and fewer privileges.