from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Arrangement or formation in zones; zonate structure.
  • noun Ecology The distribution of organisms in biogeographic zones.

from The Century Dictionary.

  • noun In phytogeography, the distribution of vegetation in œcological zones or belts, or the general concept of such distribution. See zone, 8.
  • noun In cytology, a term applied to a differentiation of the cytoplasm of the plant cell into concentric layers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An arrangement or distribution of things into zones.


Sorry, no etymologies found.


  • These patterns of zonation are different depending on whether the reef is a fringing, atoll or barrier reef.

    Coral reef zonation

  • Such distributional patterns of corals on reefs creates the zonation found on many coral reefs.

    Coral reef zonation

  • A typical zonation pattern includes back reef or reef flat, reef crest or algal ridge, and seaward slope or fore-reef.

    Coral reef zonation

  • Most reefs exhibit a similar zonation pattern that reflects both vertical and horizontal gradients in water energy (mainly waves) and proximity to land.

    Coral reef

  • This plan was endorsed by a the province authorities and establishes the zonation and management regulations for the entire area.

    Península Valdés, Argentina

  • Climate change is one of the biggest threats to coral reefs, and can lead to changes in zonation.

    Coral reef zonation

  • Climate change and hazard zonation in the circum-Arctic permafrost regions.

    Permafrost and infrastructure in the Arctic

  • Permafrost distribution, zonation and stability along the eastern ranges of the Cordillera of North America.

    Permafrost and infrastructure in the Arctic

  • Vertical vegetational zonation characterizes the Alaska Range and Wrangell Mountains, beginning with dense bottom-land stands of white spruce and cottonwood on the floodplains and low terraces of the Copper and Susitna Rivers.

    Alaska Range Humid Tayga - Tundra - Meadow (Bailey)

  • Actual boundaries and zonation of the park were defined on 11 October 1971 by Law 19.292.

    Los Glaciares National Park, Argentina


Log in or sign up to get involved in the conversation. It's quick and easy.