ADJECTIVE (2)

1. of or related to the synthetic phase of metabolism;

2. characterized by or promoting constructive metabolism;
- Example: "some athletes take anabolic steroids to increase muscle size temporarily"

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]