septillionn.adj.

Brit.

/sɛpˈtɪljən/, U.S.

/sɛpˈtɪljən/

Forms: 1600s septilion, 1700s– septillion.

Origin: A borrowing from French. Etymon: French septillion.

Etymology: < French septillion (1520 in Middle French as septilion) < sept seven (see septieme n.) + -illion (in million million n.).

A. n.

Originally: the cardinal number equal to the seventh power of a million, represented by 1 followed by forty-two zeros (10⁴²) (now chiefly British and somewhat rare). Later also (originally U.S.): the cardinal number equal to the eighth power of a thousand, or 1 followed by twenty-four zeros (10²⁴). Also hyperbolically: a very large number or amount.

ΘΚΠ

the world > relative properties > number > specific numbers > hundred and over > [noun] > powers of a million

quadrilliona1690

quintilliona1690

trilliona1690

nonillion1690

octillion1690

septillion1690

sextillion1690

trimillion1707

decillion1709

centillion1754

sexillion1758

vigintillion1928

googol1940

googolplex1940

squillion1943

1690 J. Locke Ess. Humane Understanding ii. xvi. 99 Septilions.

1766 J. Mair Arithm., Rational & Pract. I. i. 10 The first [period] is the period of units; the second, that of millions; the third is titled bimillions or billions..; the eighth, septillions.

1856 L. H. Grindon Life xxx. 272 There are thousands of plants which consist of nothing more than a few such cells as in septillions make up an oak-tree.

1870 Eng. Mech. 28 Jan. 491/1 A quadrillion is the next highest number to a trillion; then quintillions, sextillions, septillions, octillions.

1906 Daily Chron. 18 May 9/4 M. Inaudi subtracted correctly a sum of figures running into septillions—purely from memory.

1954 Househ. Guide & Almanac (News of World) 271/2 Cherrill once put the chances of an identical finger-print at a septillion to one.

2014 E. Brynjolfsson & A. McAfee Second Machine Age iv. 67 When its set of prefixes was expanded in 1991 at the nineteenth General Conference on Weights and Measures, the largest one was yotta, signifying one septillion, or 10²⁴.

B. adj.

Numbering or amounting to a septillion. Also hyperbolically: very many, countless.Frequently prefixed by a multiplier.

ΚΠ

1835 West of Engl. Jrnl. Sci. & Art July 147 Sir John Herschel..calculates that the force must be 2 × 10⁴⁴, or two hundred septillion times greater than the ordinary intensity of gravity.

1869 A. B. Palmer Four Lect. Homœopathy i. 23 One grain, in an ocean of fourteen septillion cubic miles of alcohol.

1904 Amer. Geologist 34 236 The Earth contains 260,000,000, 000 cubic miles, which makes 66 septillion cubic inches.

1993 ‘J. Gash’ Paid & Loving Eyes (1994) xxii. 247 Some Oxford goon's worked out that there's 403 septillion ways of combining letters in English.

2014 D. J. Emlen Animal Weapons iv. 58 Scale it to the current human population and there are a septillion (twenty-four zeros) more sperm than eggs.

Derivatives

sepˈtillionth (a) n. each of septillion equal parts into which something may be or is divided; (also hyperbolically) a tiny fraction; (b) adj. designating such a part or fraction.

ΚΠ

1835 London Med. Gaz. 24 Oct. 102/1 (table) Twenty-first [attenuation]..One septillionth.

1908 Amerika Esperantisto July 124 ‘Invest’ one drop of water at a septillionth part of a cent, compound, five-per-cent interest. Why, man, twenty earths of solid gold wouldn't pay the bill today!

2018 Targeted News Service (Nexis) 28 Aug. Because the [Higgs] boson lasts only for about one septillionth of a second, researchers use the particle's offspring as evidence of its existence.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022).

单词	septillion
释义	septillionn.adj. Brit. /sɛpˈtɪljən/, U.S. /sɛpˈtɪljən/ Forms: 1600s septilion, 1700s– septillion. Origin: A borrowing from French. Etymon: French septillion. Etymology: < French septillion (1520 in Middle French as septilion) < sept seven (see septieme n.) + -illion (in million million n.). A. n. Originally: the cardinal number equal to the seventh power of a million, represented by 1 followed by forty-two zeros (10⁴²) (now chiefly British and somewhat rare). Later also (originally U.S.): the cardinal number equal to the eighth power of a thousand, or 1 followed by twenty-four zeros (10²⁴). Also hyperbolically: a very large number or amount. ΘΚΠ the world > relative properties > number > specific numbers > hundred and over > [noun] > powers of a million quadrilliona1690 quintilliona1690 trilliona1690 nonillion1690 octillion1690 septillion1690 sextillion1690 trimillion1707 decillion1709 centillion1754 sexillion1758 vigintillion1928 googol1940 googolplex1940 squillion1943 1690 J. Locke Ess. Humane Understanding ii. xvi. 99 Septilions. 1766 J. Mair Arithm., Rational & Pract. I. i. 10 The first [period] is the period of units; the second, that of millions; the third is titled bimillions or billions..; the eighth, septillions. 1856 L. H. Grindon Life xxx. 272 There are thousands of plants which consist of nothing more than a few such cells as in septillions make up an oak-tree. 1870 Eng. Mech. 28 Jan. 491/1 A quadrillion is the next highest number to a trillion; then quintillions, sextillions, septillions, octillions. 1906 Daily Chron. 18 May 9/4 M. Inaudi subtracted correctly a sum of figures running into septillions—purely from memory. 1954 Househ. Guide & Almanac (News of World) 271/2 Cherrill once put the chances of an identical finger-print at a septillion to one. 2014 E. Brynjolfsson & A. McAfee Second Machine Age iv. 67 When its set of prefixes was expanded in 1991 at the nineteenth General Conference on Weights and Measures, the largest one was yotta, signifying one septillion, or 10²⁴. B. adj. Numbering or amounting to a septillion. Also hyperbolically: very many, countless.Frequently prefixed by a multiplier. ΚΠ 1835 West of Engl. Jrnl. Sci. & Art July 147 Sir John Herschel..calculates that the force must be 2 × 10⁴⁴, or two hundred septillion times greater than the ordinary intensity of gravity. 1869 A. B. Palmer Four Lect. Homœopathy i. 23 One grain, in an ocean of fourteen septillion cubic miles of alcohol. 1904 Amer. Geologist 34 236 The Earth contains 260,000,000, 000 cubic miles, which makes 66 septillion cubic inches. 1993 ‘J. Gash’ Paid & Loving Eyes (1994) xxii. 247 Some Oxford goon's worked out that there's 403 septillion ways of combining letters in English. 2014 D. J. Emlen Animal Weapons iv. 58 Scale it to the current human population and there are a septillion (twenty-four zeros) more sperm than eggs. Derivatives sepˈtillionth (a) n. each of septillion equal parts into which something may be or is divided; (also hyperbolically) a tiny fraction; (b) adj. designating such a part or fraction. ΚΠ 1835 London Med. Gaz. 24 Oct. 102/1 (table) Twenty-first [attenuation]..One septillionth. 1908 Amerika Esperantisto July 124 ‘Invest’ one drop of water at a septillionth part of a cent, compound, five-per-cent interest. Why, man, twenty earths of solid gold wouldn't pay the bill today! 2018 Targeted News Service (Nexis) 28 Aug. Because the [Higgs] boson lasts only for about one septillionth of a second, researchers use the particle's offspring as evidence of its existence. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022). < n.adj.1690
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