orthocenter

[ awr-thuh-sen-ter ]
/ ˈɔr θəˌsɛn tər /

noun Geometry.

the point of intersection of the three altitudes of a triangle.

Origin of orthocenter

First recorded in 1865–70; ortho- + center
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019