| 单词 | cross-breeding | 
| 释义 | > as lemmasˈcross-ˌbreeding   ˈcross-ˌbreeding  n. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > 			[noun]		 > cross-breeding or hybridism nick1824 crossing1851 hybridization1851 hybridism1854 intercrossing1859 hybridation1879 outcrossing1890 paragenesis1890 outbreeding1901 back-crossing1904 vicinism1905 monohybridism1907 cross-breeding1932 1932    Discovery Mar. 73/2  				There was a certain amount of selection and cross breeding [of crops] towards the end of the nineteenth century. < as lemmas  | 
	
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