ˈɔɪlər

Definitions

1. noun

A Swiss mathematician who made important contributions to the fields of calculus and graph theory, particularly with the discovery of Euler’s number (e), the Euler characteristic, and the formula for the number of vertices, edges, and faces in a polyhedron (V + F = E + 2).

“Leonhard Euler is considered one of the greatest mathematicians of all time, and his work continues to influence mathematics and science today.”

2. proper noun

The name of a crater on the Moon, a city in Russia, and other geographical locations.

“The city of Euler in Russia is a beautiful place to visit during the summer.”