Definify.com
Webster 1913 Edition
Arterial
Ar-te′ri-al
,Adj.
 [Cf. F. 
artériel
.] 1. 
Of or pertaining to an artery, or the arteries; 
as, 
 arterial 
action; the arterial 
system.2. 
Of or pertaining to a main channel (resembling an artery), as a river, canal, or railroad. 
Arterial blood
, blood which has been changed and vitalized (arterialized) during passage through the lungs.
 Webster 1828 Edition
Arterial
ARTE'RIAL
,Adj.
  1.
  Pertaining to an artery or the arteries; as arterial action.2.
  Contained in an artery; as arterial blood.