auxotroph
/ˈɔːksətrɒf/noun
- Biology a mutant organism (especially a bacterium or fungus) that requires a particular additional nutrient which the normal strain does not【生】营养缺陷体（尤指细菌或真菌）。
派生词
auxotrophic
adjective词源
1950s: from Latin auxilium 'help' + Greek trophos 'feeder'.