词汇 | trillion |
词源 | trillion1680s, from French trillion, from Italian trilione; see tri- + million. In the U.S., the fourth power of a thousand (one thousand billion, 1 followed by 12 zeroes); in Great Britain, the third power of a million (one million billion, 1 followed by 18 zeroes), which is the original sense. Compare billion. updated on February 16, 2014 |
随便看 |
英语词源词典收录了45867条英语词源词条,基本涵盖了全部常用英语词汇的起源、历史,是研究英语词汇或通过词源学英语的必备工具。