Sostantivo
Synonym of neutronium (“material composed of neutrons”).
Uso- informale
- non numerabile
Synonym of muonium.
Uso- informale
- non numerabile
A fictional chemical element with element number/atomic number/proton number zero (0), often with unrealistic properties.
Uso- non numerabile
Used other than figuratively or idiomatically: see element, zero.
Uso- non numerabile