American Heritage® Dictionary of the English Language, Fourth Edition
- n. The cardinal number equal to 1018.
- n. Chiefly British The cardinal number equal to 1030.
Century Dictionary and Cyclopedia
- n. In the English notation, the fifth power of a million, a unit followed by thirty ciphers; in the French notation, used generally in the United States, the sixth power of one thousand, a unit followed by eighteen ciphers.
- Noting a quintillion; the cardinal numeral corresponding to a quintillion: strictly a collective noun. See hundred, a.
- n. US A billion billion: 1 followed by eighteen zeros, 1018.
- n. dated A million quadrillion: 1 followed by 30 zeros, 1030.
- n. figuratively, slang Any very large number, exceeding normal description.
- n. the number that is represented as a one followed by 18 zeros
- quint- (“five”) + -illion; ie the fifth power of a million, 1030. (Wiktionary)
- Latin quīntus, fifth; see penkwe in Indo-European roots + (m)illion. (American Heritage® Dictionary of the English Language, Fourth Edition)
“One quintillion is equal to one billion billion, written as a one followed by 18 zeroes.”
“(An exabyte is 1 quintillion bytes; a quintillion is the number 1 followed by 18 zeroes.)”
“Professor MORLEY DAVIDSON (Department of Mathematical Sciences, Kent State University): A quintillion is a billion, billion.”
“And yes, "quintillion" is a number so large, it almost seems made-up.”
“Then, the super prominence snapped, releasing a quintillion tons of plasma in a conical plum headed toward the Arcturian homeworld at nearly the speed of light.”
“Mr. Skaugen noted that the acquisition will help Intel achieve "exascale" computing performance by 2018, or a quintillion operations per second.”
“By 2018, Japan, the U.S. and China are targeting the development of supercomputer capable of doing 1 quintillion 1 million trillion calculations per second.”
“The odds of it happening are almost infinitesimally small, or precisely 1 in 2,432,902,008,176,640,000 roughly two and a half quintillion to one," begins Guy Griffiths in an email that we wished had arrived in the Knowledge inbox before we went through the past 120 years of English football tables.”
“Every day, people create the equivalent of 2.5 quintillion bytes of data from sensors, mobile devices, online transactions, and social networks; so much that 90 percent of the world's data has been generated in the past two years.”
“Most of this radioactive cesium will end up in the Pacific Ocean and will be enormously diluted in the 200 quintillion gallons of water there.”
These user-created lists contain the word ‘quintillion’.
These come from gamma meditation ,I think.
Names of numbers.
Looking for tweets for quintillion.