Source : Webster's Revised Unabridged Dictionary (1913)

Anabolic \An`a*bol"ic\, a. [Gr. ? something heaped up; ? + ? a
   stroke.] (Physiol.)
   Pertaining to anabolism; an anabolic changes, or processes,
   more or less constructive in their nature.

Source : WordNet®

anabolic
     adj 1: of or related to the synthetic phase of metabolism
     2: characterized by or promoting constructive metabolism; "some
        athletes take anabolic steroids to increase muscle size
        temporarily" [ant: {catabolic}]