metabolic
Word family
- metabolismnounB2
- metabolizeverbC1
- metabolizableadjectiveC1
- metabolicallyadverbC1
- metabolitenounC1
Synonym discussion
Sense: adjective/1
"Metabolic" refers specifically to the chemical reactions that convert food into energy and building materials for the body. "Biochemical" is broader — it covers all chemical processes in living organisms, including DNA replication and protein synthesis, not just energy conversion. "Physiological" is wider still, encompassing any normal body function or process, such as heart rate and digestion. "Organic" can relate to living things but is far more general and often used for carbon-based chemistry or food production methods. For example: doctors measure a patient's "metabolic rate" (not biochemical rate); a study on "physiological responses to exercise" includes metabolic changes but also heart rate, breathing, and temperature regulation.
Common collocations
Etymology
From Greek "metabolē" (change, turning about) + the English adjective suffix "-ic". The Greek root comes from "meta-" (change) and "ballein" (to throw). The word entered scientific English in the mid-19th century through German biological writings on the chemical changes that sustain life.
First known use
1841
1841, in the meaning defined above