单词	pneumatocyst
释义	pneumatocyst noun pneu·​ma·​to·​cyst ˈn(y)ü-mə-tō-ˌsist  n(y)u̇-ˈma-tə- 1 : the air bladder of certain algae and aquatic plants … many seaweeds have floats called pneumatocysts, filled with oxygen or carbon dioxide. Michael Le Page 2 : a benign, usually asymptomatic, gas-filled lesion found in bone especially of the ilium, sacrum, or spinal vertebra Word History Etymology pneumato- + -cyst First Known Use 1859, in the meaning defined at sense 1 Medical Definition pneumatocyst noun pneu·​ma·​to·​cyst ˈn(y)ü-mət-ō-ˌsist  n(y)u̇-ˈmat-ə- : a benign, usually asymptomatic, gas-filled lesion found in bone especially of the ilium, sacrum, or spinal vertebra
随便看	self-support self-supported self-supporting self-sure self-sureness self-surrender self-sustained self-sustaining self-taken self-talk self-tanner self-tapping screw self-taught self-therapy self-tightening self-timer self-tolerance self-toning paper self-torment self-tormented self-tormenting self-tormentings self-tormentor self-tormentors self-torments

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。