The story
From Tabetha, from the discovery by Tabetha S. Boyajian and her team, of the unusual variability in brightness of this star.
Etymology from Wiktionary, CC BY-SA 4.0.
Tabby's Star
Today it means: A star in Cygnus constellation, Milky Way Galaxy. A star that dramatically dimmed in an odd non-repeating pattern, that was suspected to be due to a partial Dyson swarm, indicating a extraterrestrial megastructure construct and thus a sign of intelligent aliens. Full definition →