septillion
/sepˈtɪljən/cardinal number
(pl. septillions 或 (数字后) 复同单)
1- a thousand raised to the eighth power (1024)一千的八次方。
1.1
- dated, chiefly Brit. a million raised to the seventh power (1042)〈旧, 主英〉百万的七次方。
词源
late 17th cent.: from French, from million, by substitution of the prefix septi- 'seven' （from Latin septimus 'seventh'） for the initial letters.