from the GNU version of the Collaborative International Dictionary of English
- adj. Having some or all of the tail quills terminated in a long, slender, pointed shaft, without a web or barbules.
from The Century Dictionary and Cyclopedia
- Having wiry or wireshafted tail-feathers, as the thread-tailed swallow, Uromitus filiferus. See cuts under thread-tailed, Trochilidæ, Videstrelda, and Vidua.
Sorry, no etymologies found.