in anatomy, "a tube, duct, or conduit for conveying blood, lymph, semen, etc.," plural vasa, Latin, literally "vessel." Vas deferens (plural vasa defferentia) is from 1570s.
Entries linking to vas
extravasation n.
"escape of fluid into the tissues after a rupture," 1670s, from Latin extra "outside" (see extra-) + form derived from vas "vessel" (see vas (n.)). Related: Extravasate (1660s).
vasculitis n.
1872, from Latin vasculum, diminutive of vas, + -itis "inflammation."