noun
(also o-o-aa)
The Kauai oo, Moho braccatus, which is believed to have become extinct in the late 1980s.
Origin
1930s; earliest use found in Webster's New International Dictionary of the English Language. From Hawaiian ʽōʽō-ʽāʽā Kauai oo from ʽōʽō + ‘ā‘ā dwarf.
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