from the GNU version of the Collaborative International Dictionary of English
- n.pl. birds whose young at first have down on the pterylæ only; -- called also Gymnopædes.
from The Century Dictionary and Cyclopedia
- In ornithology, in Sundevall's system (1872), a primary group of birds, embracing those which are hatched naked and require to be fed in the nest by the parent
Sorry, no etymologies found.