zenithal

zenithal

[zee-nuh-thuhl or, esp. British, zen-uh-]
adjective
1.
of or pertaining to the zenith; situated at or near the zenith.
2.
(of a map) drawn to indicate the actual direction of any point from the center point.

Origin:
1855–60; zenith + -al1

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World English Dictionary
zenith (ˈzɛnɪθ, US ˈziːnɪθ)
 
n
1.  astronomy the point on the celestial sphere vertically above an observer
2.  the highest point; peak; acme: the zenith of someone's achievements
 
[C17: from French cenith, from Medieval Latin, from Old Spanish zenit, based on Arabic samt, as in samt arrās path over one's head, from samt way, path + al the + rās head]
 
'zenithal
 
adj

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