histologically

from WordNet (r) 3.0 (2006)

histologically
    adv 1: involving the use of histology or histological
           techniques; "histologically identifiable structures"

from The Collaborative International Dictionary of English v.0.48

Histologic \His`to*log"ic\, Histological \His`to*log"ic*al\ a.
   (Biol.)
   Pertaining to histology, or to the microscopic structure of
   the tissues of living organisms. -- {His`to*log"ic*al*ly},
   adv.
   [1913 Webster]