glassfet /glas'fet/, n. [by analogy with MOSFET, the acronym for Metal-Oxide-Semiconductor Field-Effect Transistor] Syn. {firebottle}, a humorous way to refer to a vacuum tube.
glassfet /glas'fet/ [Analogy with {MOSFET}] (or "{firebottle}") A humorous way to refer to a {vacuum tube}. [{Jargon File}]