Z

Multiple detonations around the thruster injector due to fuel and/or combustion products condensing between thruster pulses and then igniting during a subsequent pulse. Coined by Marquardt Corporation from the BC comic strip that used the term to describe the result of a lightning strike. See for example Lipschutz, M., et al., "Failure Analysis of a Qualification Unit Injector for a Satellite Thruster", Proc. 24th Int'l Symposium for Testing & Failure Analysis, Dallas, TX, 15-19 Nov 98, pp83-91, and [available through [|Google Books]
 * Zot**

Military form of Greenwich Mean Time (GMT) or Universal Time Coordinated (UTC).
 * Zulu**