quadrillion

Meanings

1. 1
   noun

   the number that is represented as a one followed by 15 zeros

   One quadrillion is written as a one followed by fifteen zeros in the short scale.

Simplified etymology

Quadrillion is recorded in English from the late 17th century. It belongs to the series built around million in which billion represents the second power of a million, trillion the third, and quadrillion the fourth.

From French quadrillion, from quadri- (“four”) + -illion. By surface analysis, quadr- + -illion.

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