from the GNU version of the Collaborative International Dictionary of English
- n.pl. A group of birds having the bill deeply cleft.
from The Century Dictionary and Cyclopedia
- In Cuvier's system of classification, a division of his Passerinæ, including the swallows, swifts, and goatsuckers; an artificial group, the original components of which are now separated in different orders.
Sorry, no etymologies found.
A dull sermon, for instance, makes half the congregation "fissirostres."
In the conirostres are the perfections which belong to the incessores as an order, with the conspicuous external feature of a comparatively small notch in their bills; in the dentirostres, the notch is strong and toothlike, (hence the name of the tribe) assimilating them to the raptores; the fissirostres come into analogy with the natatores in the slight development of their feet and their great powers of flight; the tenuirostres have the small mouths and long soft bills of the grallatores.