n. pl. se·tae (-tē)
1. A stiff hair, bristle, or bristlelike process or part on an organism, especially an invertebrate.
2. The stalk of a moss or liverwort capsule.
[Latin saeta, sēta, bristle.]
setal (sētl) adj.
(click for a larger image)seta
setae on the foot of a gecko
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.