SEPTILLION
Source: 567
Sep‐til″lion (?), n. [[F. septilion, formed fr. L. septem seven, in imitation of million.]] According to the French method of numeration (which is followed also in the United States), the number expressed by a unit with twenty-four ciphers annexed. According to the English method, the number expressed by a unit with forty-two ciphers annexed. See Numeration.