decussatio

noun
de·​cus·​sa·​tio | \ ˌdē-(ˌ)kə-ˈsā-sh(ē-)ō How to pronounce decussatio (audio) \
plural decussationes\ -​ˌsā-​shē-​ˈō-​ˌnēz How to pronounce decussationes (audio) \

Medical Definition of decussatio