Definitions for diatryma
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Wiktionary
diatryma(Noun)
A big-beaked prehistoric bird in the genus Gastornis which is larger than the ostrich. They supposedly died out 15- to 25-million years ago due to a vast climate change.
Origin: διατρήμα.
Webster Dictionary
Diatryma(noun)
an extinct eocene bird from New Mexico, larger than the ostrich
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"diatryma." Definitions.net. STANDS4 LLC, 2013. Web. 20 May 2013. <http://www.definitions.net/definition/diatryma>.