from the GNU version of the Collaborative International Dictionary of English

  • n. The horny covering of the end of the bill of birds.

from The Century Dictionary and Cyclopedia

  • n. In ornithology, the integument of the dertrum, however distinguished from the rest of the covering of the beak. It is quite distinct in some birds, as petrels.


Sorry, no etymologies found.


    Sorry, no example sentences found.


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