(virology) A phenomenon that can develop during a pandemic where after a group recovers and infections appear to decrease, another group becomes infected and causes a recurrence in cases.

A method of curling the hair by pinching it between the fingers and combing in alternate directions.

(obsolete, physics) Alternative form of æther wave

(historical, physics) a quantum of light, a photon, an electromagnetic wave -- understood as being a disturbance in the æther, a substance believed to provide the medium for light in vacuum

Alternative form of crimewave

Alternative form of rogue wave

Alternative form of Alfvén wave

(aerodynamics) Drag resulting from shock wave formation at transonic and supersonic speeds.

simple past tense and past participle of wave off

present participle of wave off