adj.
Pronunciation: ' z ō -n ə l
Function: adjective
Date: 1867
1 : of, relating to, affecting, or having the form of a zone <a zonal boundary>
2 : of, relating to, or being a soil or a major soil group marked by well-developed characteristics that are determined primarily by the action of climate and organisms (as vegetation) ― compare AZONAL , INTRAZONAL
– zon · al · ly \ -n ə l- ē \ adverb