nanocosm Share definition Flag a single object or individual with the same characteristics as or that represents something much larger. Scrooge is not a microcosm, he is an individual. He is a nanocosm of Victorian-era bourgeoisie. nanocosm by skibidi among us March 12, 2025 0 0 Get merch Get the nanocosm mug. Buy Now — $32.95 See more merch