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  1. null

    • IPA[nəl]

    美式

    • adj.
      having no legal or binding force; invalid;having or associated with the value zero.
    • n.
      a zero.;a dummy letter in a cipher.
    • v.
      combine (a signal) with another in order to create a null; cancel out
    • 釋義
    • 相關詞

    形容詞

    名詞

    • 1. literary a zero.
    • literary a dummy letter in a cipher.
    • literary a condition of no signal.
    • literary a direction in which no electromagnetic radiation is detected or emitted.

    動詞

    • 1. combine (a signal) with another in order to create a null; cancel out the tumor can be more readily identified by nulling the high signal from bone marrow
    • n.
      an instrument used to measure an electrical quantity by adjusting known quantities in the ...

    Oxford Dictionary

    • n.
      (in a statistical test) the hypothesis that there is no significant difference between ...

    Oxford American Dictionary

    • n.
      a character denoting nothing, usually represented by a binary zero.

    Oxford American Dictionary

    • n.
      (in a statistical test) the hypothesis that there is no significant difference between ...

    Oxford Dictionary

    • n.
      a reference incorporated into the last item in a list to indicate there are no further items in ...

    Oxford Dictionary

    • n.
      a character denoting nothing, usually represented by a binary zero.

    Oxford Dictionary

    • n.
      a reference incorporated into the last item in a list to indicate there are no further items in ...

    Oxford American Dictionary

    • 更多解釋
    • IPA[nʌl]

    英式

    • adj.
      having no legal or binding force; invalid: the establishment of a new interim government was declared null and void
    • n.
      a zero.
    • v.
      combine (a signal) with another in order to create a null; cancel out: the tumour can be more readily identified by nulling the high signal from bone marrow

    Oxford Dictionary