EUSEBIAN, [=u]-s[=e]'bi-an, _adj._ pertaining to _Eusebius_ of Cæsarea,
father of ecclesiastical history (died 340), or to the Arian _Eusebius_ of
Nicomedia (died 342).
EUSKARIAN, [=u]s-k[=a]'ri-an, _adj._ Basque. [Basque _Euskara_, the Basque
language.]
EUSTACHIAN, [=u]-st[=a]'ki-an, _adj._ pertaining to the tube leading from
the middle ear to the pharynx, or to the rudimentary valve at the entrance
of the inferior vena cava in the heart. [Named from the Italian physician
Bartolommeo _Eustachio_ (died 1574).]