vas aberrans of Haller
noun
vas ab·er·rans of Hal·ler
| \ -ˈab-ə-ˌranz-əv-ˈhäl-ər
\
\
plural vasa aberrantia of Haller\ -ˌab-ə-ˈran-ch(ē-)ə-
\
\
Medical Definition of vas aberrans of Haller
: a blind tube that is occasionally present parallel to the first part of the vas deferens and that may communicate with the vas deferens or with the epididymis
— called also ductulus aberrans