释义 |
backscatter \ˈ ̷ ̷| ̷ ̷ ̷ ̷\ noun or backscattering \ˈ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷\ Etymology: back (II) + scatter or scattering : the scattering of radiation (as X rays) in a direction approximately opposite to that of the incident radiation and due to reflection from particles of the medium traversed; also : the radiation so reversed in direction |