Looking for the meaning or definition of the word Euler line? Here's what it means.
Noun
(geometry) A line that, for a given triangle, passes through several important points, including the circumcentre, orthocentre and centroid; an analogous line for certain other 2- and 3-dimensional geometric figures.
(graph theory) An Eulerian path, a looped path through a graph that passes along every edge exactly once.