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zonal |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Zonal \Zon"al\, a. [L. zonalis.] 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}. From WordNet r 1.6 [wn]: zonal adj 1: relating to or of the nature of a zone; "the zonal frontier" [syn: {zonary}] 2: associated with or divided into zones; "a zonal pattern of cell structure"; "zonal division" [ant: {azonal}]
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