Definition of aleurone in English:



mass nounBotany
  • Protein stored as granules in the cells of plant seeds.

    as modifier ‘aleurone grains’
    • ‘The endosperm, the largest organ in the seed, is surrounded by a single layer of cells, the aleurone layer.’
    • ‘Expression was more obvious in aleurone cells, the endosperm cells lining the maternal seed coat.’
    • ‘Endosperm refers to the rest of the seed, i.e. the seed coat, pericarp, aleurone layer, and starchy endosperm.’
    • ‘Only intact embryos with no starch or aleurone tissue adhering to the scutellar tissue were used.’
    • ‘Details of endosperm mobilization and aleurone cell death were first described in the nineteenth century by Haberlandt.’


Mid 19th century: from Greek aleuron ‘flour’.