English Dictionary

nullity

noun

The state of being null, or void, or invalid. / (law) A void act; a defective proceeding or one expressly declared by statute to be a nullity.

The nullity of the contract was due to a lack of consideration.

意味（1）

The state of being null, or void, or invalid.

nullity of marriage

意味（2）

(law) A void act; a defective proceeding or one expressly declared by statute to be a nullity.

意味（3）

(mathematics) The difference between the rank of a matrix and the number of columns it has; the dimension of the nullspace of a matrix.