nullity

English

Etymology

From Middle French nullité and its etymon Medieval Latin nūllitās, from Latin nūllus.[1] By surface analysis, null +‎ -ity.

Pronunciation

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Noun

nullity (countable and uncountable, plural nullities)

  1. The state of being null, or void, or invalid.
    nullity of marriage
  2. (law) A void act; a defective proceeding or one expressly declared by statute to be a nullity.
  3. (mathematics) The dimension of the kernel of a linear transformation; the dimension of the nullspace of a matrix.

Derived terms

Translations

References

  1. ^ “nullity, n.”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.
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