telltale
n.— «The telltales for gas, oil, temperature, and battery voltage—standard, fixed icons that don’t change in real time—reside in the PROM memory.» —“Design A Minimum-Space Auto-Instrument Module” by Ralph Ong Electronic Design Aug. 4, 1989. (source: Double-Tongued Dictionary)
Further reading
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...
What exactly is a planet? Controversy over this question led to Pluto’s redefinition, along with a brand-new English word. And: Some people now use the phrase all the things! to mean and whatnot or you know what I mean. This new sense of all...