pampiniform
adjective
pam·pin·i·form
pamˈpinəˌfȯrm
: convoluted and like a tendril —used of a venous plexus associated with the spermatic or ovarian veins
Word History
Etymology
Latin pampinus tendril, vine-leaf (of non-Indo-European origin) + English -iform; akin to the source of Greek ampelos vine