safe sex

noun

1. sexual activities in which precautions have been taken, as by the use of a condom, to minimize the chances of spreading or contracting a sexually transmitted disease.

noun

1. sexual intercourse using physical protection, such as a condom, or nonpenetrative methods to prevent the spread of such diseases as AIDS

n.

1. Sexual activity in which safeguards, such as the use of a condom, are taken to avoid acquiring or spreading a sexually transmitted disease.