Euler

American  

[oi-ler, oi-luhr] / ˈɔɪ lər, ˈɔɪ lər /

noun

1. Leonhard 1707–83, Swiss mathematician.

2. Ulf Svante von 1905–83, Swedish physiologist: Nobel Prize in Medicine 1970.

---

Euler British  

/ ˈɔɪlər /

noun

1. Leonhard (ˈleːɔnhart). 1707–83, Swiss mathematician, noted esp for his work on the calculus of variation: considered the founder of modern mathematical analysis

2. Ulf ( Svante ) von (ʊlf fɔn). 1905–83, Swedish physiologist: shared the Nobel prize (1970) for physiology or medicine with Julius Axelrod and Bernard Katz for their work on the catecholamines: son of Hans von Euler-Chelpin

---

Euler Scientific  

/ oi′lər /

1. Swiss mathematician who made many contributions to numerous areas of pure and applied mathematics, physics, and astronomy. He was one of the first to develop the methods used in differential and integral calculus, and he introduced much of the basic mathematical notation still used today.

---

Example Sentences

Over the following century and a half, scientists including Leonard Euler, Joseph-Louis Lagrange, and eventually Hamilton expanded Newton's work, developing more flexible mathematical descriptions of motion.

From Science Daily • Mar. 10, 2026

Leonhard Euler was a Swiss mathematician whose 866 published mathematical papers are the most published as a solo author of anyone in history.

From Salon • Jul. 29, 2024

The Washington Post spoke to Euler recently about women and aging.

From Washington Post • Oct. 22, 2022

America director Euler de Almeida Araujo remembers being impressed by his strength and determination - honed from running up and down the hilly, cobbled streets of Nova Venecia.

From BBC • May 4, 2022

Nevertheless, his idealized parabolic trajectory in a vacuum was an essential precondition for the much more sophisticated analysis by Robins and Euler of actual trajectories.

From "The Invention of Science" by David Wootton