# experiment

/ɪkˈspɛɹəmənt/ (US) · /ɛkspˈɛɹɪmənt/ (UK)

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

## Senses

### 1. scientific test

noun · CEFR A2

a scientific test done to find out how something works or if an idea is true.

For teachers: a procedure carried out under controlled conditions to discover an unknown effect, test a hypothesis, or illustrate a known law.

- In science class, we did an experiment to see how plants grow in the dark.
- The researchers conducted a double-blind experiment to determine whether the new medication was more effective than the existing treatment.

Usage: Commonly used with the verbs 'do', 'conduct', 'perform', or 'carry out'.

## Examples

- The students perform a chemistry experiment in class today.
- Scientists are conducting a new experiment to see if the medicine works on humans.
- The results of the social experiment suggest that people are more likely to help a stranger if they are not in a hurry.

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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.