pentobarbital

Etymology

From pent(yl) + -o- + barbital.

noun

1. (pharmacology) A narcotic and sedative barbiturate drug (trademark Nembutal) formerly used to relieve insomnia.
   And lest anyone think traipsing through the gray and bleach-smelly execution chamber where triple homicide offenders are injected with pentobarbital isn't depressing enough, later they will stage a press conference in front of the gates of Captain Joe Byrd Cemetery, the parched plot of land where executed prisoners whose bodies family members prefer not to claim are buried. 2016, Christopher Kelly, The Pink Bus, Mapple Shade, New Jersey: Lethe Press, page 146