单词	semi-synthetic
释义	semi-synthetic /sɛmɪsɪnˈθɛtɪk / adjective Chemistry (Of a substance) made by synthesis from a naturally occurring material: a wide range of semi-synthetic penicillins... This is a semi-synthetic substance used as a thickening substance and to encourage lather. Pyrethroids for example may be quite soft on mammals and birds but this particular group of semi-synthetic pesticides is extremely toxic to insects, fish and amphibians. The Germans have begun work on semi-synthetic analogs to certain ferulic-acid skeletal-remnant panaxosides, in a mutual agreement with an unnamed Japanese pharmaceutical manufacturer.
随便看	mega-money megamouth megamouth shark Megan's Law Meganthropus meganucleus megaoesophagus megaphone megaphone diplomacy megaphonic megaphonist megaphyll megaphyllous megaphylly megapixel megaplume megapod megapode megapolis Megarean Megarian Megaric mega-rich megaripple megaron

英语词典包含243303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。