资料来源 : pyDict

发展的,开发的;促进生长的,发育中的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Developmental \De*vel`op*men"tal\, a.
   Pertaining to, or characteristic of, the process of
   development; as, the developmental power of a germ.
   --Carpenter.

资料来源 : WordNet®

developmental
     adj : of or relating to or constituting development;
           "developmental psychology"