Simulacrum/ˌsɪmjuˈleɪkrəm/ Definition 1 of 3Pro Tip 1/3Beyond Physical Simulacrum often represents abstract ideas, not just physical objects. Their celebration was a simulacrum of unity. Pro Tip 2/3Not Negative Simulacrum doesn't always suggest a bad imitation; can be neutral too. The software presented a simulacrum of the human brain. Pro Tip 3/3Tech Relevance In technology, simulacrum can refer to virtual reality or simulations. The game is a simulacrum of space exploration.