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azo-, az-

[Gr. azōtos, lifeless] Prefix indicating the presence of —N : N— group in a chemical structure. This group is usually connected at both ends to carbon atoms. SEE: azo compounds.

azo compounds

(ā′zō″) SEE: under compound.


(ā′zōl″, az′ōl″) Any of a class of antifungal drugs (such as fluconazole, ketoconazole, and voriconazole) that prevents fungi from making ergosterol.


(ā-zō″ŏ-spĕr′mē-ă) [1an- + zoo- + sperm + -ia] Absence of spermatozoa in the semen.

obstructive a. Blockage of the flow of sperm through the vas deferens, caused by infections, injuries, or congenital malformations, and the most common cause of male infertility. azoospermic (ā-zō″ŏ-spĕr′mik), adj.


(ā″zō″tē′mē-ă) [azo- + -emia] Presence of increased amounts of nitrogenous waste products, esp. urea, in the blood. SEE: uremia.


(ă-zō″tō-băk′tĕr) A genus of gram-negative, aerobic bacilli that fixes atmospheric nitrogen in soil and water.


(ăz″ō-tū′rē-ă) [″ + ″ + ouron, urine] An increase in nitrogenous compounds, esp. urea, in urine.


Azidothymidine, the former name for zidovudine.


(ăz-ū′rō-fĭl) [″ + Gr. philein, to love] Staining readily with azure dye. azurophilic (ăz-ū′rō-fĭl′ĭk), adj.


(ăz″ū-rō-fĭl′ē-ă) Condition in which some blood cells have azurophil granules.


(ā-zī′gŏs) [1an- + zygon, yoke] 1. Occurring singly, not in pairs. 2. An unpaired anatomical part. azygos, azygous (ā-zī′gŏs), adj.

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