zon·al /ˈzonḷ/ 形容詞
Zon·al a. Of or pertaining to a zone; having the form of a zone or zones.
Zonal equation Crystallog., the mathematical relation which belongs to all the planes of a zone, and expresses their common position with reference to the axes.
Zonal structure Crystallog., a structure characterized by the arrangements of color, inclusions, etc., of a crystal in parallel or concentric layers, which usually follow the outline of the crystal, and mark the changes that have taken place during its growth.
Zonal symmetry. Biol. See the Note under Symmetry.
adj 1: relating to or of the nature of a zone; "the zonal frontier"
2: associated with or divided into zones; "a zonal pattern of
cell structure"; "zonal division" [ant: azonal]