axeny

axeny 1. Not contaminated by or associated with any other living organisms. Usually used in reference to pure cultures of microorganisms that are completely free of the presence of other organisms. 2. A reference to experimental animals that are raised under sterile conditions; such as, 'axenic conditions'; 'germfree animals'.
Found on http://www.wordinfo.info/words/index/info/view_unit/2332/
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