Word Study
quadrillion
WORDNET DICTIONARY
Noun quadrillion has 2 senses
- quadrillion(n = noun.quantity) Array - the number that is represented as a one followed by 24 zeros; "in England they call a septillion a quadrillion" is a kind of large integer
- quadrillion(n = noun.quantity) Array - the number that is represented as a one followed by 15 zeros; Array is a kind of large integer
CIDE DICTIONARY
quadrillion, n. [F., fr. L. quater four times, akin to quattuor four, E. four; -- formed like million. See Four, Million.].
According to the French notation, which is followed also upon the Continent and in the United States, a unit with fifteen ciphers annexed; according to the English notation, the number produced by involving a million to the fourth power, or the number represented by a unit with twenty-four ciphers annexed. See the Note under Numeration. [1913 Webster]
OXFORD DICTIONARY
quadrillion, n. (pl. same or quadrillions) a thousand raised to the fifth (or formerly, esp. Brit., the eighth) power (10(15) and 10(24) respectively).
Etymology
F (as QUADRI-, MILLION)
THESAURUS
quadrillion
a billion, a crore, a lakh, a million, a myriad, a nonillion, a quadrillion, a thousand, a zillion, decillion, duodecillion, googol, googolplex, jillion, nonillion, novemdecillion, octillion, octodecillion, quattuordecillion, quindecillion, quintillion, septillion, sexdecillion, sextillion, tredecillion, trillion, undecillion, vigintillion, zillion
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