Definition of endocarp in US English:



  • The innermost layer of the pericarp which surrounds a seed in a fruit. It may be membranous (as in apples) or woody (as in the stone of a peach or cherry).

    • ‘The seed is enclosed in a hard endocarp.’
    • ‘Surface deposits are covering materials on seed coats and are apparently derived from the endocarp.’
    • ‘The shell of the nut itself, which constitutes the endocarp, is hard, woody and brown.’
    • ‘In peach fruit, cell numbers in the endocarp appear to be fixed several weeks after full bloom.’
    • ‘The fruits usually bear two or three seeds that are covered by an endocarp that opens when the fruit pulp is removed.’
    kernel, seed, pip, pit
    View synonyms


Early 19th century: from endo- ‘within’ + a shortened form of pericarp.