Standard Lemma guide

geosmin

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • UK: /d͡ʒiːˈɒz.mɪn/
  • US: /d͡ʒiˈɑz.mɪn/

1

noun

Meaning 1

A bacterial derivative of decahydronaphthalene that has a strong earthy smell and is the material responsible for petrichor and for the earthy taste of beetroot.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Ancient Greek γεω- (geō-, “earth”) + ὀσμή (osmḗ, “smell”) + -in. Coined by American biochemist Nancy N. Gerber and French-American biologist Hubert A. Lechevalier in 1965.

Across languages

Translations

2 source translations are retained for this English entry.

  • Polish: geosmina — compound
  • Spanish: geosmina — compound