introrsePronunciation: /ɪnˈtrɔːs/Definition of introrse adjective Botany & Zoology turned inwards. The opposite of extrorse. (of anthers) releasing their pollen towards the centre of the flower. Origin: mid 19th century: from Latin introrsus, from introversus 'turned inwards'introrse in other Oxford dictionaries Definition of introrse in the US English dictionary