Definition of o-o in English:

o-o

Syllabification: o-o
Pronunciation: /ˈōˌō
 
/
(also oo)

noun (plural o-os)

A honeyeater (bird) found in Hawaii, now probably extinct, which had a thin curved bill and climbed about on tree trunks.
  • Genus Moho, family Meliphagidae

Origin

late 19th century: from Hawaiian.

Definition of o-o in:

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Pronunciation: ˈsiːtəʊs
adjective
bearing bristles or setae; bristly