词根词缀：exa-

【来源及含义】Greek: from hexa-, "six"; a decimal prefix used in the international metric system for measurements

【相关描述】This is a prefix that is used in the metric [decimal] system as one-quintillion [U.S.] or trillionfold [U.K.], 10¹⁸ [1 000 000 000 000 000 000]. The metric symbol for exa- is E.

【相关词根词缀】 Related "metric" families: yotta; zetta; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.

【同源单词】exabit, exabyte, exagram, exajoule, exasecond

词根词缀：femto-

【来源及含义】Danish and Norwegian: fifteen; a decimal prefix used in the international metric system for measurements

【相关描述】It is used in the metric [decimal] system as quadrillionth [U.S.] and thousand-billionth part [U.K.], 10^-15 [0.000 000 000 000 001]. The metric symbol for femto- is f.

【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; atto; zepto; yocto.

【同源单词】femtoampere, femtogram, femtojoule, femtoliter, femtometer, femtomole

词根词缀：yotta-

【来源及含义】Greek: from octo-, "eight"; a decimal prefix used in the international metric system for measurements

【相关词根词缀】 Related "metric" families: zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.

【同源单词】yottabit, yottabyte, yottagram, yottajoule, yottaliter, yottameter

词根词缀：zetta-

【来源及含义】Latin: septo-, "seven"; a decimal prefix [10²¹] used in the international metric system for measurements

【相关词根词缀】 Related "metric" families: yotta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.

【同源单词】zettajoule, zettaliter, zettameter