(meteorology) The difference in pressure between the Azores High and the Icelandic Low, which changes periodically and controls the strength of the Westerlies. Usually abbreviated NAO.

plural of North Atlantic Oscillation

A quasiperiodic oscillation of the equatorial zonal wind between easterlies and westerlies in the tropical stratosphere

plural of quasi-biennial oscillation

A test to identify, evaluate and locate partial discharge faults in cable insulation and accessories.

(chemistry) Any chemical reaction in which the concentration of some component varies over time or space in a regular periodic manner.

That oscillates; oscillating. / Capable of sustaining oscillations.

(bacteriology) Belonging to the Oscillatoriaceae.

plural of oscillatory reaction

In a way of oscillations or oscillators.