partial anaesthesia
partial anesthesia

"She (Zoe) could not rest earlier because she opted for partial anaesthesia so she could witness the birth of her child," explained Pan.

The single worst experience of her entire life had been the partial anesthesia required while ex- perts completed her synaptic connections to the ship.

Having Moira there to figuratively hold her hand during the nasty process of partial anesthesia while the techs hooked her up in her column had been worth platinum.