单词	Rh factor
释义	Rh factor noun ˌär-ˈāch-  : any of one or more genetically determined antigens present in the red blood cells of most persons and of higher animals and capable of inducing intense immunogenic reactions Word History Etymology rhesus monkey (in which it was first detected) First Known Use 1942, in the meaning defined above Medical Definition Rh factor noun ˈär-ˈāch-  : a genetically determined protein on the red blood cells of some people that is one of the substances used to classify human blood as to compatibility for transfusion and that when present in a fetus but not in the mother causes a serious immunogenic reaction in which the mother produces antibodies that cross the placenta and attack the red blood cells of the fetus called also rhesus factor
随便看	operates operatic operatically operatics operating operating room operating system operating table operating theatre operation operational operational calculus operational fatigue operationalise operationalised operationalism operationalisms operationalist operationalistic operationalists operationalization operationalize operationalized operationally operationism

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