azonal, a.
(əˈzəʊnəl, eɪ-)
[f. a- 14 + zonal a.; cf. Gr. ἄζωνος zoneless.]
Not confined to a zone, not arranged in zones; spec. in Soil Sci., azonal soil (see quot. 1938).
| 1896 C. MacMillan in Bull. Torrey Bot. Club XXIII. 507 There are two principal types of plant arrangement in their habitats. These are (1) Zonal and (2) Azonal... When the topographic feature is devoid of..well-marked radial symmetry the plants dispose themselves according to the azonal type. 1938 Soils & Men: Yearbook Agric. 1938 (U.S. Dept. Agric.) 1163 Azonal soils, any group of soils without well-developed profile characteristics. 1952 P. W. Richards Trop. Rain Forest ix. 210 In these cases the influence of the material from which the soil is formed overrides that of the climate giving rise to so-called azonal soils (in contrast to the climatic or zonal types). |