| 单词 | amniocentesis | 
| 释义 | Word Frequency amniocentesis(ˌæmnɪəʊsɛnˈtiːsɪs) nounWord forms:  plural -ses (-siːz)  removal of some amniotic fluid by the insertion into the womb of a hollow needle, for therapeutic or diagnostic purposes  Word origin C20: from amnion + centesis, from Greek kentēsis a puncture, from kentein to prick | 
	
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