cauda

noun
cau·​da | \ ˈkau̇d-ə How to pronounce cauda (audio) , ˈkȯd- How to pronounce cauda (audio) \
plural caudae\ ˈkau̇-​ˌdī, ˈkȯ-​ˌdē How to pronounce caudae (audio) \

Medical Definition of cauda

: a taillike appendage : tail