stonecropPronunciation: /ˈstəʊnkrɒp/Definition of stonecrop noun a small fleshy-leaved plant which typically has star-shaped yellow or white flowers and grows among rocks or on walls. Genus Sedum, family Crassulaceae: many species, including yellow (or biting) stonecrop (S. acre), whose tiny leaves have a bitter, peppery taste stonecrop in other Oxford dictionaries Definition of stonecrop in the US English dictionary