morphologically

from WordNet (r) 3.0 (2006)

morphologically
    adv 1: in a morphological manner; with regard to morphology;
           "these two plants are morphologically related"

from The Collaborative International Dictionary of English v.0.48

Morphologic \Mor`pho*log"ic\, Morphological \Mor`pho*log"ic*al\,
   a. [Cf. F. morphologique.] (Biol.)
   Of, pertaining to, or according to, the principles of
   morphology. -- {Mor`pho*log"ic*al*ly}, adv.
   [1913 Webster]