phrenicotomy
/ˌfrɛnɪˈkɒtəmi/Surgery
noun
Surgical division of a phrenic nerve, in order to paralyse the corresponding half of the diaphragm; an instance of this.
Origin
Early 20th century; earliest use found in The Lancet. From phrenico- + -tomy, perhaps after German Phrenikotomie.