1Turned outward.The opposite of introrse
- ‘These pitchers are extrorse (face outward), and according to habitat can be red, green, yellow, or orange, and are as long as 21 cm.’
- ‘These pollen sacs can face outward, in which case the stamens are called extrorse (eg, Ranunculaceae), or inward, in which case the stamens are called introrse.’
- 1.1(of anthers) releasing their pollen on the outside of the flower.
- ‘Anthers are juxtaposed, included in the corolla, extrorse and open longitudinally.’
- ‘Extrorse anthers are somewhat concentrated in primitive dicots and primitive monocots and are rare in more advanced groups.’
- ‘On the other hand, there is a correlation between extrorse anthers and short filaments:’
Mid 19th century: from late Latin extrorsus outward (adverb).