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  1. Oxford Dictionary

    zonation

    • IPA[zəʊˈneɪʃn]

    英式

    • n.
      distribution in zones or regions of definite character；the distribution of plants or animals into specific zones according to such parameters as altitude or depth, each characterized by its dominant species

    • noun: zonation, plural noun: zonations

    • 釋義

    名詞

    • 1. distribution in zones or regions of definite character quartz grains can exhibit zonation and rounding
    • ▪ the distribution of plants or animals into specific zones according to such parameters as altitude or depth, each characterized by its dominant species this zonation involves encrusting lichens, sedentary animals, and seaweeds