英语词汇“hourglass mark”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	hourglass mark
释义	Hourglass Mark An identifying red spot with a central constriction which is located on the ventral aspect of the female black widow spider, Latrodectus mactans
随便看	neo-keynesian economics median sacral artery median sacral crest median sacral vein median sagittal plane median section median seizure frequency reduction rate median septum medians of a triangle median (statistics) median sternotomy median strip median strips median sulcus median sulcus of fourth ventricle median sulcus of tongue median survival mediant median-thenar to ulnar-hypothenar latency difference median thymic-thyroid artery median thyrohyoid ligament median thyrotomy median time to repair median tissue culture infective dose median tolerance limit

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Hourglass Mark