orthocenter

or·tho·cen·ter

[awr-thuh-sen-ter]
noun Geometry.
the point of intersection of the three altitudes of a triangle.

Origin:
1865–70; ortho- + center

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World English Dictionary
orthocentre or (US) orthocenter (ˈɔːθəʊˌsɛntə) [Click for IPA pronunciation guide]
 
n
the point of intersection of any two altitudes of a triangle
 
orthocenter or (US) orthocenter
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Orthocenter is always a great word to know.
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an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a gadget; dingus; thingumbob.
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