noun Biology, Physiology.
- constructive metabolism; the synthesis in living organisms of more complex substances from simpler ones (opposed to catabolism).
- a metabolic process in which complex molecules are synthesized from simpler ones with the storage of energy; constructive metabolismCompare catabolism
- The phase of metabolism in which simple substances are synthesized into the complex materials of living tissue.
- The phase of metabolism in which complex molecules, such as the proteins and fats that make up body tissue, are formed from simpler ones. Compare catabolism.