单词	ultramicrotome
释义	ultramicrotome noun ul·​tra·​mi·​cro·​tome ˌəl-trə-ˈmī-krə-ˌtōm  : a microtome for cutting extremely thin sections for electron microscopy ultramicrotomy ˌəl-trə-mī-ˈkrä-tə-mē  noun Word History First Known Use 1946, in the meaning defined above Medical Definition ultramicrotome noun ul·​tra·​mi·​cro·​tome -ˈmī-krə-ˌtōm  : a microtome for cutting extremely thin sections for electron microscopy
随便看	Petrarchan sonnet petrarches Petrarchianism petrarchise petrarchised petrarchises petrarchising petrarchism Petrarchist Petrarchize petrarchized petrarchizes petrarchizing petrarchs petraries petrary Petrea petrel petrels petrescent petri dish petri- petrichor Petricola petricole

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。