etiological

from WordNet (r) 3.0 (2006)

etiological
    adj 1: of or relating to the philosophical study of causation
           [syn: {etiological}, {etiologic}, {aetiological},
           {aetiologic}]
    2: relating to the etiology of a disease; "etiological agent"
       [syn: {etiological}, {etiologic}, {aetiological},
       {aetiologic}]

from The Collaborative International Dictionary of English v.0.48

Etiological \E`ti*o*log"ic*al\, a.
   Pertaining to, or inquiring into, causes; [ae]tiological.
   [1913 Webster]