[ awk-suh-trof, -trohf ]

  1. a mutant organism, especially a microorganism, that has a nutritional requirement not shared by the parent organism.: Compare prototroph (def. 1).

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Origin of auxotroph

1950–55; back formation from auxotrophic;see auxo-, trophic

Other words from auxotroph

  • aux·o·troph·ic, adjective

Words Nearby auxotroph Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for auxotroph


/ (ˈɔːksətrəʊf) /

  1. a mutant strain of microorganism having nutritional requirements additional to those of the normal organism

Derived forms of auxotroph

  • auxotrophic, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012