Tredecillion

num

Definitions

Numeral
  1. 1
    10⁴². US, rare

    "The names of the periods above trillion are as follows [...] 15th, tredecillion [...]"

  2. 2
    10⁷⁸. Australia, British, dated, rare

Etymology

From Latin trēdec(im) (“thirteen”) + -illion. By surface analysis, tre- + decillion.

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