sorosis
/səˈrəʊsɪs
/noun (plural soroses /səˈrəʊsiːz/) Botany
A fleshy multiple fruit, e.g. a pineapple or mulberry, derived from the ovaries of several flowers.Mulberry is a composite fruit called ‘sorosis’, as is the pineapple.
Origin
Mid 19th century: modern Latin, from Greek sōros 'heap'.