Quintillion Definition

kwĭn-tĭlyən
noun
The cardinal number equal to 1018 .
American Heritage
The number represented by 1 followed by 18 zeros.
Webster's New World
The number represented by 1 followed by 30 zeros.
Webster's New World
The cardinal number equal to 1030 .
American Heritage
(figuratively, slang) Any very large number, exceeding normal description.
Wiktionary
adjective
Amounting to one quintillion in number.
Webster's New World

Other Word Forms of Quintillion

Noun

Singular:
quintillion
Plural:
quintillions

Origin of Quintillion

  • quint- (“five") +"Ž -illion; ie the fifth power of a million, 1030.

    From Wiktionary

  • Latin quīntus fifth penkwe in Indo-European roots (m)illion

    From American Heritage Dictionary of the English Language, 5th Edition

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