from the GNU version of the Collaborative International Dictionary of English
- adj. Having few or imperfect syringeal muscles; -- said of some passerine birds (Oligomyodi).
from The Century Dictionary and Cyclopedia
- In ornithology, having few or imperfectly differentiated muscles of the syrinx: applied to a lower series of birds of the order Passeres, such as the Clamatores or Mesomyodi, and synonymous with mesomyodian, but of less exact signification.
Sorry, no etymologies found.