# biochemistry

/ˌbaɪoʊˈkɛməstɹi/ (US) · /bˌaɪəʊkˈɛmɪstɹi/ (UK)

Source: https://englishreference.com/word/biochemistry
Updated: 2026-08-08

## Senses

### 1. scientific study

noun · CEFR B2 · Academic · Technical

the scientific study of the chemistry of living things.

For teachers: the branch of science that explores the chemical processes within and related to living organisms. Uncountable in this sense.

- She decided to study biochemistry at university because she was interested in how medicines work.
- Advances in biochemistry have allowed researchers to map the complex metabolic pathways that govern cellular energy production and storage.

Usage: Usually functions as an uncountable noun when referring to the academic field.

### 2. chemical makeup of an organism

noun · CEFR C1 · Technical

the specific chemical qualities or processes of a particular person or animal.

For teachers: the chemical characteristics or biological processes specific to a particular organism or system.

- The doctor explained that the patient's unique biochemistry made them sensitive to certain foods.
- The study examined how the biochemistry of deep-sea fish differs from that of species living in shallower, warmer waters.

Usage: Can be used as a countable noun when comparing the chemical systems of different individuals or species.

## Examples

- She is studying biochemistry at university.
- Understanding biochemistry helps doctors explain how medicines interact with the body.
- Modern biochemistry bridges the gap between molecular biology and organic chemistry, revealing the intricate metabolic pathways that sustain cellular life.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.