neutronium

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释义与例句

n.
  1. 1.

    A material composed entirely of neutrons.

    不可数 物理
  2. 2.

    A hypothetical gravitationally bound system of a neutron and an antineutron (the onium of a neutron), not predicted to exist under normal circumstances.

    不可数 物理

词源

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).

来源：wiktionary