• WordNet 3.6
    • n openbill stork with a grooved bill whose upper and lower parts touch only at the base and tip
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Webster's Revised Unabridged Dictionary
    • n Openbill (Zoöl) A bird of the genus Anastomus, allied to the stork; -- so called because the two parts of the bill touch only at the base and tip. One species inhabits India, another Africa. Called also open-beak. See Illust., under Beak.
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Century Dictionary and Cyclopedia
    • n openbill A stork of the genus Anastomus.
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In literature:

Egrets, night-herons, cormorants, darters, paddy-birds, openbills, and spoonbills build stick nests in trees.
"A Bird Calendar for Northern India" by Douglas Dewar