zonation
nounArrangement or formation in zones; zonate structure.
nounThe distribution of organisms in biogeographic zones.
nounIn phytogeography, the distribution of vegetation in œcological zones or belts, or the general concept of such distribution. See
In cytology, a term applied to a differentiation of the cytoplasm of the plant cell into concentric layers.
nounAn arrangement or distribution of things into