perceptronium

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noun

A hypothetical state of matter capable of giving rise to self-awareness and subjectivity.

Scrabble 21

Meanings

nounperceptronium (uncountable)
  1. uncountableA hypothetical state of matter capable of giving rise to self-awareness and subjectivity.

    Max Tegmark, a physicist at the Massachusetts Institute of Physics (he also spoke at the New York event), has proposed that there is a state of matter — like solid, liquid and gas — that he calls perceptronium: atoms arranged so they can process information and give rise to subjectivity.

    2016 July 4, George Johnson, “Consciousness: The Mind Messing With the Mind”, in New York Times

Origin

Coined by the physicist Max Tegmark, from perceptron + -ium.

Full word history & related roots →
Cite this entry
APA

perceptronium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/perceptronium

MLA

“perceptronium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/perceptronium. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “perceptronium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/perceptronium.

Source: perceptronium on Wiktionary, CC BY-SA 4.0.