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null

Syllabification: (null)
Pronunciation: /nəl/
Translate null | into French | into German | into Italian | into Spanish
Definition of null

adjective

  • 1 [predic.] having no legal or binding force; invalid:the establishment of a new interim government was declared null and void
  • 2having or associated with the value zero.
  • Mathematics (of a set or matrix) having no elements, or only zeros as elements.
  • lacking distinctive qualities; having no positive substance or content:his curiously null life

noun

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

verb

[with object] Electronics
  • combine (a signal) with another in order to create a null; cancel out.

Origin:

late Middle English: from French nul, nulle, from Latin nullus 'none', from ne 'not' + ullus 'any'

null in other Oxford dictionaries

Definition of null in the British & World English dictionary

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