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单词 macronucleus
释义 macronucleus
 —macronuclear,  adj.  
 /mak'roh nooh"klee euhs, -nyooh"-/, n. Biol.
 the larger of the two types of nuclei occurring in ciliate protozoans, having a multiple set of chromosomes and functioning in cell metabolism and protein synthesis. Cf. micronucleus.
 [1890-95; < NL; see MACRO-, NUCLEUS]
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