Definition of endosperm in English:

endosperm

noun

Botany
  • The part of a seed that acts as a food store for the developing plant embryo, usually containing starch with protein and other nutrients.

    • ‘Tobacco seeds accumulate oil and protein in the embryo, cellular endosperm and inner layer of the seed coat.’
    • ‘Most of its volume is taken up by the starchy endosperm, where starch and storage proteins are accumulated.’
    • ‘Thus the three seed components, embryo, endosperm and seed coat, are genetically distinct.’
    • ‘Soluble proteins from endosperm and leaf tissues were used.’
    • ‘Cereal grains, for example, store the bulk of their storage proteins in the starchy endosperm.’

Pronunciation:

endosperm

/ˈendəˌspərm/