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quadrillion

noun qua·dril·lion \kwä-ˈdril-yən\

: the number 1,000,000,000,000,000 : one thousand trillion

Full Definition of QUADRILLION

— see number table
— quadrillion adjective
— qua·dril·lionth \-yən(t)th\ adjective or noun
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Origin of QUADRILLION

French, from Middle French, from quadri- + -illion (as in million)
First Known Use: circa 1690

Rhymes with QUADRILLION

Brazilian, caecilian, Castilian, centillion, civilian, cotillion, decillion, gazillion, kazillion, modillion, nonillion, octillion, pavilion, postilion, Quintilian, quintillion, reptilian, septillion, sextillion, Sicilian, tourbillion, vaudevillian, vermilion

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