Facing outward; turned away from the axis: extrorse anthers.
[Late Latin extrōrsus, turned outward (modeled on Latin intrōrsum, turned inward) : Latin extrā, outside; see EXTRA- + Latin versus, past participle of vertere, to turn; see wer-2 in the Appendix of Indo-European roots.]
(click for a larger image)extrorse
extrorse dehiscence (black) of anthers
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.