transbronchial

adjective
trans·​bron·​chi·​al | \ tran(t)s-ˈbräŋ-kē-əl, tranz- How to pronounce transbronchial (audio) \

Medical Definition of transbronchial

: occurring or performed by way of a bronchus specifically : involving the passage of a bronchoscope through the lumen of a bronchus a transbronchial lung biopsy