A more thorough explanation:

Circumduction is the act of cancelling or annulling something.

• The circumduction of the contract meant that neither party was bound by its terms.
• The circumduction of the law was necessary to ensure justice was served.

These examples illustrate how circumduction refers to the act of cancelling or annulling something. In the first example, the contract was cancelled, meaning that neither party was bound by its terms. In the second example, the law was circumducted in order to ensure justice was served, which means that certain legal procedures were cancelled or altered in order to achieve a just outcome.