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auxotroph

[awk-suh-trof, -trohf] /ˈɔk səˌtrɒf, -ˌtroʊf/
noun, Biology
1.
a mutant organism, especially a microorganism, that has a nutritional requirement not shared by the parent organism.
Compare prototroph (def 1).
Origin
1950-1955
1950-55; back formation from auxotrophic; see auxo-, trophic
Related forms
auxotrophic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for auxotroph

auxotroph

/ˈɔːksətrəʊf/
noun
1.
a mutant strain of microorganism having nutritional requirements additional to those of the normal organism
Derived Forms
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
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auxotroph in Medicine

auxotroph aux·o·troph (ôk'sə-trŏf', -trōf')
n.
A mutated microorganism having nutritional requirements that differ from those of unmutated microorganisms from the same strain.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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