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Webster 1913 Edition
Epiornis
Epˊi-or′nis
,Noun.
 [NL.: cf. F. 
épiornis
. See Æpyornis
.] (Zoöl.) 
One of the gigantic ostrichlike birds of the genus 
Æpiornis
, only recently extinct. Its remains have been found in Madagascar. [Written also 
Æpyornis
.]