cannula
/ˈkænjʊlə/noun
(pl. cannulae /-liː/ 或cannulas)
- Surgery a thin tube inserted into a vein or body cavity to administer medication, drain off fluid, or insert a surgical instrument【外科】套管, 插管。
词源
late 17th cent.: from Latin 'small reed'， diminutive of canna （see CANE）.