Plural of chimera; mythical creatures with mixed parts, or impossible fantasies and wild ideas.
From Greek 'Chimaira,' a monster from Greek mythology with mixed animal parts; the word came to mean any impossible or foolish fancy.
Today, scientists actually create real chimeras in laboratories by combining genes from different species—what was pure mythology is becoming science, making the ancient Greeks' monster name surprisingly accurate for modern genetic technology.
In classical mythology, Chimera was typically depicted as female, but modern usage has abstracted this away; however, the term retains residual gendered connotations in some philosophical/literary contexts where the monstrous is coded feminine.
Use neutrally for impossible combinations or hybrid concepts; gendered reading is rare in contemporary technical usage.
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