quadrillion

• POS: Definite Article, Noun
• HYPHEN: quad=ril=lion

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