Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

morphological
     adj 1: relating to or concerned with the formation of admissible
            words in a language [syn: {morphologic}]
     2: pertaining to geological structure; "geomorphological
        features of the Black Hills"; "morphological features of
        granite"; "structural effects of folding and faulting of
        the earth's surface" [syn: {geomorphologic}, {geomorphological},
         {morphologic}, {structural}]
     3: relating to or concerned with the morphology of plants and
        animals; "morphological differences" [syn: {morphologic},
        {structural}]