noun Biology, Physiology.

  1. constructive metabolism; the synthesis in living organisms of more complex substances from simpler ones (opposed to catabolism).


  1. a metabolic process in which complex molecules are synthesized from simpler ones with the storage of energy; constructive metabolismCompare catabolism

1886; see anabolic + -ism.


  1. The phase of metabolism in which simple substances are synthesized into the complex materials of living tissue.

  1. 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.

The chemical reactions that synthesize molecules in metabolism. (Compare catabolism.)

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