(physics) A metal-semiconductor diode that exhibits a nonlinear voltage/current relationship

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

(especially of a vehicle) destroyed

(mathematics) An isomorphism of a symplectic manifold; a diffeomorphism which preserves symplectic structure.