any of a group of five-membered heterocyclic compounds containing one or more nitrogen atoms in the ring, the number of nitrogen atoms present being indicated by a prefix, as in diazole.
The latter, known as ethylene-selenourea, may be classified also in the azole group as 2-iminotetrahydroselenazole (V).
Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives Y-Gwan Chen
an organic five-membered ring compound containing one or more atoms in the ring, the number usually being specified by a prefix: diazole, triazole
a less common name for pyrrole
azole az·ole (āz’ōl’, ā’zōl’)
A class of organic compounds having a five-membered heterocyclic ring with two double bonds; pyrrole.
Any of various compounds having a ring structure made of five atoms, one of which is always nitrogen and another of which is either a second nitrogen or an atom of oxygen or sulfur.
not divided into zones. (of soil) so young that horizons have not yet developed.
not confined to any particular zone or region; not local.
- Azonal soil
noun soil that has a profile determined predominantly by factors other than local climate and vegetation. Azonal soils include some mountain, alluvial, marine, glacial, windblown, and volcanic soils Compare intrazonal soil, zonal soil
noun (pathol) absence of spermatozoa in the semen azoospermia a·zo·o·sper·mi·a (ā-zō’ə-spûr’mē-ə, ə-zō’-) n. Absence of live spermatozoa in the semen. Failure to form live spermatozoa.