(information technology) The lack of historical information in the digital age as a direct result of outdated file formats, software, or hardware that becomes corrupt, scarce, or inaccessible as technologies evolve and data decays.

(politics) An informal group of commentators who oppose what they regard as the dominance of identity politics, political correctness, and cancel culture in higher education and the news media within Western countries.

(of a potential romantic partner) Mysterious and physically appealing.

Junco hyemalis, a passerine bird in the passerine family Passerellidae.

Synonym of oh dark thirty

plural of dark jungle glory

An Asian butterfly, Thaumantis noureddin, of the family Nymphalidae.

plural of crater of eternal darkness

Catocala sponsa, a species of underwing moth.

(astronomy, physics) dark matter comprising elementary particles whose composition is as yet unknown, but is presumed to be unlike normal protons, neutrons and electrons etc.