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auxiliary
auxiliary device
auxiliary language
auxiliary note
auxiliary rotor
auxiliary verb
auxin
auxotonic
auxotroph
Auyuittuq National Park
AV
Av
Av.
av.
avadavat
avail
availability
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auxotroph
aux·o·troph [ áwksə tròf ] (plural aux·o·trophs)


noun 
Definition:
 
microorganism requiring nutrient from environment: a mutant strain of an organism, e.g. a bacterium, that has lost the ability to synthesize a specific nutrient growth factor and must obtain it from its environment to survive
[Mid-20th century. < Greek auxein "to increase"]

aux·o·troph·ic [ àwksə tróffik ] adjective
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