English Dictionary: Zonal | by the DICT Development Group |
2 results for Zonal | |
From WordNet (r) 3.0 (2006) [wn]: | |
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}. |