42 U.S. Code § 15609 - Definitions
The term “carnal knowledge” means contact between the penis and the vulva or the penis and the anus, including penetration of any sort, however slight.
The term “inmate” means any person incarcerated or detained in any facility who is accused of, convicted of, sentenced for, or adjudicated delinquent for, violations of criminal law or the terms and conditions of parole, probation, pretrial release, or diversionary program.
The term “oral sodomy” means contact between the mouth and the penis, the mouth and the vulva, or the mouth and the anus.
The term “prison rape” includes the rape of an inmate in the actual or constructive control of prison officials.
The term “sexual assault with an object” means the use of any hand, finger, object, or other instrument to penetrate, however slightly, the genital or anal opening of the body of another person.
The term “sexual fondling” means the touching of the private body parts of another person (including the genitalia, anus, groin, breast, inner thigh, or buttocks) for the purpose of sexual gratification.