OAO definitions

Oao

1) Skylab initials
Found on https://www.crosswordclues.com/clue/oao

---

OAO

OAO, a three letter acronym, may stand for: ...
Found on http://en.wikipedia.org/wiki/OAO

---

OAO

Ontario Association of Orthodontists
Found on http://www.encyclo.co.uk/local/20895

---

OAO

Over And Out
Found on http://www.encyclo.co.uk/local/21662

---

OAO

Okayama Astrophysical Observatory, in Japan
Found on http://www.translationdirectory.com/glossaries/glossary142.htm

---

OAO

Orbiting Astronomical Observatory, a series of satellites with astronomical instruments that operated in the 1970s
Found on http://www.translationdirectory.com/glossaries/glossary142.htm

---