| 单词 | retractile activity | 
| 释义 | Definition of retractile activity in English:retractile activitynoun Physiology Medicine 
 Origin1960s; earliest use found in Biochimica et Biophysica Acta. Definition of retractile activity in US English:retractile activitynoun Physiology Medicine 
 Origin1960s; earliest use found in Biochimica et Biophysica Acta.  | 
	
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