horizontality

from WordNet (r) 3.0 (2006)
horizontality
    n 1: the quality of being parallel to the horizon; "houses with
         a pronounced horizontality"
    
from The Collaborative International Dictionary of English v.0.48
Horizontality \Hor`i*zon*tal"i*ty\, n. [Cf. F.
   horizontalit['e].]
   The state or quality of being horizontal. --Kirwan.
   [1913 Webster]
    

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