quadrillion
英 [kwɒ'drɪljən]
美[kwɑ'drɪljən]
- n. 百万之四次方；千的五次方
- adj. 千之五次方的
英英释意
- 1. the number that is represented as a one followed by 24 zeros;
- "in England they call a septillion a quadrillion"
- 2. the number that is represented as a one followed by 15 zeros