Abbreviation of autonomous oblast. / Abbreviation of autonomous okrug. / (US, Navy) Abbreviation of auxiliary oiler. / (chemistry) Initialism of atomic orbital. / Abbreviation of area of operations.

(idiomatic) Saying one thing to one person and something different to another; double talking; deceitful in speech.

(surgery) Construction of an anastomosis of the stomach to the colon

plural of glenoid