Prior to surgery.

A transgender person who has not yet undergone gender reassignment surgery.

In a preoperative context; before surgery.

plural of preoperative

(business) Before the start of operation.

Prior to an operation (military, surgical, or other).

Prior to a surgical operation. / In or relating to a Piagetian phase of child development characterized by sparse and logically inadequate mental operations and inability to reason or work with symbols.