# chemistry

/ˈkɛməstɹi/ (US) · /kˈɛmɪstɹi/ (UK)

Source: https://englishreference.com/word/chemistry
Updated: 2026-06-19

## Senses

### 1. scientific study

noun · CEFR A2

the science that studies what things are made of and how they change when they are mixed together.

For teachers: the branch of natural science dealing with the composition, structure, and properties of substances and the reactions by which they are transformed.

- She decided to study chemistry at university because she loved doing experiments in the lab.
- The fundamental principles of organic chemistry are essential for understanding how complex biological molecules interact within the human body.

Usage: uncountable in this general sense

### 2. personal attraction

noun · CEFR B2 · Informal

the strong feeling of connection or attraction between two people.

For teachers: the mutual attraction, rapport, or spontaneous emotional connection between two individuals.

- The two actors had great chemistry on screen, making the love story feel very real.
- Despite their impressive individual resumes, the two executives failed to lead effectively because they lacked the personal chemistry required for a collaborative partnership.

Usage: uncountable in this figurative sense

Teaching tip: Often used in the context of dating or professional partnerships to describe a 'natural fit'.

### 3. chemical properties

noun · CEFR C1 · Technical

the specific way a substance or a living thing behaves chemically.

For teachers: the specific chemical properties, composition, and reactions of a particular organism, environment, or substance.

- The chemistry of the soil in this garden is perfect for growing roses.
- Researchers are still investigating the complex brain chemistry that contributes to chronic sleep disorders in elderly patients.

Usage: can be countable or uncountable

## Examples

- We study the chemistry of water in school.
- The two actors have great chemistry on screen, making their relationship feel very believable to the audience.
- While the laboratory focuses on organic chemistry and the synthesis of new compounds, the success of the research team depends largely on the personal chemistry between the lead scientists.

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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.