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  1. contrast medium

    • IPA[ˈkäntrast ˌmēdēəm]

    美式

    • n.
      a substance introduced into a part of the body in order to improve the visibility of internal structure during radiography.
    • noun: contrast medium, plural noun: contrast media

    • 更多解釋
    • IPA[ˈkɒntrɑːst ˌmiːdɪəm]

    英式

    • n.
      a substance introduced into a part of the body in order to improve the visibility of internal ...

    Oxford Dictionary