endergonic

adjective Biochemistry.

1. (of a biochemical reaction) requiring energy.

adjective

1. (of a biochemical reaction) requiring energy to proceedCompare exergonic

adj.

1. Of or relating to a chemical reaction that absorbs energy and therefore cools its surroundings.

1. Relating to a chemical reaction that requires the absorption of energy. The production of sugars by plants during photosynthesis is an endergonic reaction, where sunlight provides the necessary energy. Compare exergonic.