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zonation

[zoh-ney-shuh n]
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noun
  1. the state or condition of being zonate.
  2. arrangement or distribution in zones.

Origin of zonation

First recorded in 1900–05; zone + -ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for zonation

zonation

noun
  1. arrangement in zones; zonate formation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012