Im-pĕr'fo-ra-ble, a.
a. [Lat. prefix im, for in, and perforare, to bore through. See PERFORATE.] Incapable of being perforated, or bored through.
a. [Lat. prefix im, for in, and perforare, to bore through. See PERFORATE.] Incapable of being perforated, or bored through.