septillion
/sɛpˈtɪljən/ numeral
Forms septillions
- numeral (US, modern British & Australian, short scale) A trillion trillion: 1 followed by 24 zeros, 10²⁴.
- numeral (dated British & Australian, long scale) A billion quintillion: 1 followed by 42 zeros, 10⁴².
Synonyms
Etymology
From French septillion, from sept- (“seven”) + -illion. By surface analysis, sept- + -illion.
Webster’s 1913
- noun According to the French method of numeration (which is followed also in the United States), the number expressed by a unit with twenty-four ciphers annexed. According to the English method, the number expressed by a unit with forty-two ciphers annexed. See Numeration.
Etymology [F. septilion, formed fr. L. septem seven, in imitation of million.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “septillion”, CC BY-SA 4.0. Details