Not intuitive to someone asking the kinds of questions the OP is asking. In the context of a thread started by someone seeking the most basic information imaginable, the use of an opaque term that none of us experienced mechanics have ever encountered verges on the punitive.

In my days working as an editor, I usually let authors get away with show-offy jargon like that if the readers were certain to be peers working in the same field, but the term would probably still get a query, more diplomatically worded than what would first have occurred to me, i.e., "What the hell?"