Definition of introrse in English:



Botany Zoology
  • 1Turned inward.

    The opposite of extrorse
    • ‘Anthers are introrse and fused longitudinally through many papillae, in such a way that they form a cuff around the ovary.’
    • ‘Five introrse anthers are united to form a cylinder around the style while the separate filaments are attached to the base of the corolla tubes.’
    1. 1.1(of anthers) releasing their pollen toward the center of the flower.
      • ‘The ten stamens are introrse, and when elongate the anthers group in the upper part of the flower.’


Mid 19th century: from Latin introrsus, from introversus turned inward.