A person who has had sexual intercourse, but is no longer sexually "active." A person have not has sexual intercourse for at least six months to be considered "deactivated."
When filling out medical records you wonder where is the box referring to those who have not had sexual intercourse in so long the can't remember the last time. This is comparable for shoe shopping. You want to purchase the shoes, but you haven't used your credit card in so long it is now "deactivated"