quadrium

名词 n.
中文释义

英文释义

名词 n.
  1. Synonym of quadrivium. uncountable
    — Church music was carefully taught at the universities. IT was of the four sciences of the quadrium, and was a means of promotion in the church and colleges.
  2. A highly unstable synthetic isotope of the element hydrogen, 41H, having one proton and three neutrons. rare,uncountable
    — The decimal character of 4.1 is a reminder that this is not a conventional H isotope such as quadrium, ⁴H, or other isotopes up to ⁷H, with lifetimes, when known in the 0.1 to 1 zs range.
  3. A quadrium atom or nucleus. rare,uncountable
    — The almost stationary ultra-cold neutron(s) occupies a position in the metal lattice where another dissolved hydrogen is most likely to tunnel in less than a nanosecond, forming a deuteron / triton / quadrium by capturing the cold neutron and releasing binding energy.

词源

From quadr- + -ium.
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