Orta with his face mutilated
"You should know I'm a hologram and can't be bent, spindled or mutilated, so don't bother trying."
Mutilation or maiming was the permanent injury caused to an individual that involved the partial dismemberment or damage to one or more body parts that often left one disfigured.
After Captain Garth of Izar was discovered by the Antos natives they "made [him] whole when [he] was maimed and dying", thanks to their skills in cellular metamorphosis. (TOS: "Whom Gods Destroy")
According to Worf, several contenders at the Bat'leth competition he competed in in mid-2370 were maimed. (TNG: "Parallels")