(volcanology, meteorology) Electrical discharge that occurs during a volcanic eruption, caused by a build-up of static electricity in colliding ejecta (such as ash and debris).

A suburb in borough of Greenwich and borough of Bexley, Greater London, England (OS grid ref TQ4472).

Obsolete form of jiffy. (brief moment)

(organic chemistry) The identification of the totality of the constituents of naturally-occurring petroleum and crude oil