Meaning

4 senses
  1. (informal, uncountable)Synonym of neutronium (“material composed of neutrons”).

  2. (informal, uncountable)Synonym of muonium.

  3. (uncountable)A fictional chemical element with element number/atomic number/proton number zero (0), often with unrealistic properties.

  4. (uncountable)Used other than figuratively or idiomatically: see element, zero.

Origin

From being a chemical element with zero protons.

From being a chemical element with zero protons.

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element zero — meaning, examples, forms, synonyms | Krumeto