# abiogenesis

CEFR C1 · Noun

Source: https://englishreference.com/word/abiogenesis
Updated: 2026-05-18

## Definition

the scientific study of how life first started on Earth from simple chemicals. It looks at how non-living matter might have turned into the first living cells.

For teachers: the natural process by which life arises from non-living matter, such as simple organic compounds. It is a central topic in evolutionary biology and the study of the origins of life.

## Examples

- Scientists are still researching the exact process of abiogenesis.
- The Miller-Urey experiment provided early evidence for abiogenesis by showing how amino acids could form in a simulated early atmosphere.
- While the mechanisms of abiogenesis remain a subject of intense debate, most modern theories suggest that life began in hydrothermal vents where chemical gradients and mineral surfaces facilitated the formation of complex molecules.

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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.