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 (ŏk′sĭ-dās′, -dāz′)
Any of a group of enzymes that catalyze oxidation, especially an enzyme that reacts with molecular oxygen to catalyze the oxidation of a substrate.

ox′i·da′sic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈɒksɪˌdeɪs; -ˌdeɪz)
(Biochemistry) any of a group of enzymes that bring about biological oxidation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈɒk sɪˌdeɪs, -ˌdeɪz)

any of a class of enzymes that catalyze oxidation by molecular oxygen and, in most cases, form hydrogen peroxide.
ox`i•da′sic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.oxidase - any of the enzymes that catalyze biological oxidation
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
peroxidase - any of a group of enzymes (occurring especially in plant cells) that catalyze the oxidation of a compound by a peroxide
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
pneumoniae.11 Oxidase test was done to identify bacteria that produce cytochrome c oxidase.
Pseudomonas aeruginosa gave positive result for catalase and oxidase test that is differentiates test for Pseudomonas sp.
Biochemical tests like catalase test, citrate utilization test, gram staining, indole test, oxidase test, starch hydrolysis test and urease test, etc.
The isolates were identified based on colony morphology, Gram-staining, motility, catalase test, oxidase test, coagulase test and biochemical tests.
Oxidase test: This test detects the presence of cytochrome oxidase enzyme in a bacterial cell and characterized by purple colour formation within 10 seconds when the bacterial sample is made in contact with 1 percent aqueous solution of tetramethyl-p-phenylenediamine dihydrochloride [22].
Biochemical test Klebsiella Escherichia pneumonia coli Catalase test (+)ve (+) ve Oxidase test (-)ve (-) ve simmon citrate test (+)ve (-) ve Urease test (+)ve Yellow/Yellow with gas production(-)ve TSI (+) ve (+) ve Indol test (-)ve (+) ve Motility test (-)ve (+)ve Methyl red test (-)ve (+) ve Vogas-proskaure test (+) ve (-) ve Gram stain (-)ve (-) ve Cell morphology On Macconkey agar Smooth, glassy and bacterial colonies translucent, rosy have a viscous/mucoid pink on MacConkey appearance with the appearance of metallic sheen when growing on Eosin methylene blue.
The presumptive of LAB colonies were tested for Gram staining, catalase test and oxidase test. Cultures with Gram positive bacteria and negative for catalase were maintained in slanted agar and 20% glycerol stock at 4[degrees]C and -20[degrees]C
The physiological and biochemical analysis revealed that it was positive to starch hydrolysis, indole test, citrate utilization, and oxidase test and negative to lysine decarboxylation enzyme, half a solid agar, gelatin hydrolysis, [H.sub.2]S production, acetamide, V-P test, methyl red test, and melezitose monohydrate.
Aeromonas hydrophila physiologically resembles members of the Enterobacteriaceae family of bacteria but can be easily differentiated by an oxidase test for which aeromonads are positive.
by Gram stain, oxidase test, and API 20NE and 20E kits (bioMerieux, Marcy L'Etoile, France).