词根词缀:kilo-, kil-
【来源及含义】Greek: one thousand; a decimal prefix used in the international metric system for measurements and representing 103 or 1 000
【相关词根词缀】 Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; hecto; deka; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.
【同源单词】kilo, kiloampere, kilobaud, kilobit, kilobytes, kilocalorie
词根词缀:roentgeno-, roentgen-
【来源及含义】German: radiation, "x-ray"; X-ray; 1896, translation of German X-strahl, from X, "algebraic symbol for an unknown quantity", + Strahl, "beam, ray"
【相关描述】So called after its discoverer, a German physicist, Wilhelm Konrad Roentgen [1845-1923], who discovered roentgen rays [x-rays] in 1895; winner of the Nobel prize in physics in 1901.
【相关词根词缀】 Related "roentgen, x-ray" units: Roentgen Biography; Chemical Element: roentgenium.
【同源单词】bioroentgenography, cineradiograhy, cineroentgenography, fluororoentgenography, kiloroentgen, microroentgen