superchron

发音

US /ˈsuːpə(ɹ)kɹɒn/

词形变化

superchrons 复数 superchrons

释义与例句

n.
  1. 1.

    A period of time between two geomagnetic reversals exceeding ten million years.

    地质

词源

From super- + chron.

来源：wiktionary