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ghrelin.

A peptide hormone, secreted in the stomach when empty, that increases appetite and secretion of growth hormone from the pituitary gland.

7 characters2 syllables approx.English language

Meaning & usage

noun/ˈɡɹɛlɪn/Canada, General-American, Received-Pronunciation/ˈɡɹelɪn/Australia
  1. A peptide hormone, secreted in the stomach when empty, that increases appetite and secretion of growth hormone from the pituitary gland.

    uncountable · usually
Where this word comes from

From g(rowth) h(ormone)-rel(easing peptide) + -in (suffix forming names of chemical compounds), influenced by Proto-Indo-European *gʰreh₁- (“to grow”): see the December 1999 quotation.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.