sorosisPronunciation: /səˈrəʊsɪs/Definition of sorosis noun (plural soroses /-siːz/) Botany a fleshy multiple fruit, e.g. a pineapple or mulberry, derived from the ovaries of several flowers. Origin: mid 19th century: modern Latin, from Greek sōros 'heap'sorosis in other Oxford dictionaries Definition of sorosis in the US English dictionary