English Explanatory Dictionary

neutronium

English dictionary entry

Meanings

noun
  1. A material composed entirely of neutrons.
  2. A hypothetical gravitationally bound system of a neutron and an antineutron (the onium of a neutron), not predicted to exist under normal circumstances.

Pronunciation

no͞o-trōʹnē-əm LL-Q1860 (eng)-Vealhurl-neutronium.wav

Word forms

neutronium

Etymology

From neutron + -ium. Coined by scientist Andreas von Antropoff in 1926 (before the discovery of the neutron in 1931; neutrons had been predicted to exist in 1920).

Synonyms

element 0 element zero neutrite neutrium neutron-degenerate matter neutron matter nilium neutron-antineutron system true neutronium n nn (polyneutron) N (nilium) Nt (neutronium neutrium) nn

Antonyms

antielement 0 antielement zero antineutrium antineutronium antinilium

Related words

neutron-star matter

Derived words

computronium
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