phrenicotomy

noun
phren·​i·​cot·​o·​my | \ˌfren-i-ˈkät-ə-mē \
plural phrenicotomies

Medical Definition of phrenicotomy 

: surgical division of a phrenic nerve to secure collapse of a diseased lung by paralyzing the diaphragm on one side — compare phrenicectomy

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