extrorsePronunciation: /ɛksˈtrɔːs/Definition of extrorse adjective Botany & Zoology turned outwards. The opposite of introrse. (of anthers) releasing their pollen on the outside of the flower. Origin: mid 19th century: from late Latin extrorsus 'outwards' (adverb)extrorse in other Oxford dictionaries Definition of extrorse in the US English dictionary