单词	tetracyclic
释义	tetracyclic /ˌtɛtrəˈsʌɪklɪk / /ˌtɛtrəˈsɪklɪk/ adjective Chemistry (Of a compound) having a molecular structure of four fused hydrocarbon rings.Cucurbitacins are oxygenated tetracyclic triterpenes that have been shown to have emetic, antineoplastic, and cytotoxic effects on herbivores, resulting in feeding and oviposition deterrence and reduced growth of consumers.... A 1998 study showed that pentacyclic alkaloids weakly activated human B- and T-lymphocytes, and that tetracyclic oxindole alkaloids reduced the activity of pentacyclic oxindoles. Mirtazapine is a tetracyclic antidepressant unrelated to tricyclic antidepressants and SSRIs.
随便看	bodice-ripper bodice-ripping bodied bodiless bodily bodkin Bodleian Library Bodley, Sir Thomas Bodoni, Giambattista Bodrum body body and soul body armour body art body artist body axis body bag body belt body blow bodyboard bodyboarder bodyboarding body box body build bodybuilder

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。