endocarp Syllabification: (en·do·carp)Pronunciation: /ˈendəˌkärp/Definition of endocarp noun Botany the innermost layer of the pericarp that surrounds a seed in a fruit. It may be membranous (as in apples) or woody (as in the stone of a peach or cherry). Derivatives endocarpicPronunciation: /ˌendōˈkärpik/ adjective Origin: early 19th century: from endo- 'within' + a shortened form of pericarpendocarp in other Oxford dictionaries Definition of endocarp in the British & World English dictionary