| 单词 | xenograft | 
| 释义 | > as lemmasxenograft   xenograft  n.  Brit.  , U.S.  , ΘΚΠ the world > health and disease > healing > medical treatment > surgery > transplanting and grafting operations > 			[noun]		 > a transplant or graft > from individual of different species heterograft1909 heterotransplant1918 xenograft1961 1961    Nature 25 Mar. 1024/2  				Grafts between species..of less general interest..have been called xenografts or heterografts. 1974    R. M. Kirk  et al.  Surgery ii. 35  				A xenograft..is poorly tolerated by the recipient. 1977    Proc. Royal Soc. Med. 70 480/2  				A xenograft in one patient was unsuccessful. 1984    Times 21 Aug. 4/1  				Surgeons have a choice of artificial valves, or those made from human or animal tissue. The latter, xenografts, are silent and rendered rejection-proof. < as lemmas  | 
	
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