xennagramとは 意味・読み方・使い方

語源

xenna- +‎ gram

名詞

xennagram (複数形 xennagrams)

1. (neologism) A unit of mass equal to 1,000,000,000,000,000,000,000,000,000 or 10²⁷ grams.
   • 1997, Council of Scientific & Industrial Research, Science Reporter Vol. 34, page 23:

     If we try to calculate the mass of earth it comes to 6 xennagrams which is nothing but 6x10²⁴ kilograms or 6x10²⁷ gms.

   • 2015, Claude Phipps, No Wonder You Wonder!: Great Inventions and Scientific Mysteries, Springer, page 14:

     The mass of the earth is about 6 Xennagrams, or Xg.

同意語

• Xg (symbol)