auxotrophPronunciation: /ˈɔːksətrəʊf, -trɒf/Definition of auxotroph noun Biology a mutant organism (especially a bacterium or fungus) that requires a particular additional nutrient which the normal strain does not. Derivatives auxotrophic adjective Origin: 1950s: from Latin auxilium 'help' + Greek trophos 'feeder'auxotroph in other Oxford dictionaries Definition of auxotroph in the US English dictionary
