Riemann

American  

[ree-mahn, ree-mahn, -muhn] / ˈriˌmɑn, ˈri mɑn, -mən /

noun

1. Georg Friedrich Bernhard 1826–66, German mathematician.

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Riemann British  

/ ˈriːman /

noun

1. Georg Friedrich Bernhard (ˈɡeːɔrk ˈfriːdrɪç ˈbɛrnhart). 1826–66, German mathematician whose non-Euclidean geometry was used by Einstein as a basis for his general theory of relativity

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Riemann Scientific  

/ rē′mən,-män′ /

1. German mathematician who originated the non-Euclidean system of geometry that is now named after him. Riemann also studied optics and electromagnetic theory, and his work influenced Albert Einstein's theory of General Relativity.

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Other Word Forms

• Riemannian adjective

Example Sentences

In the 19th century, mathematician Bernhard Riemann proposed that perceptual spaces could be curved rather than flat.

From Science Daily • Feb. 23, 2026

India has found violations related to manufacturing and laboratory practices at drugmaker Riemann Labs, whose cough syrup was linked to the deaths of children in Cameroon, a government health official told Reuters on Wednesday.

From Reuters • Aug. 2, 2023

Riemann Labs, based in the central Indian state of Madhya Pradesh, was ordered to stop manufacturing activities after an inspection by central and state drug regulators, Deputy Health Minister Bharati Pravin Pawar told the parliament.

From Reuters • Aug. 1, 2023

The problem is similar to — but distinct from — the Riemann hypothesis, which is considered one of the most important problems in mathematics.

From Scientific American • Nov. 15, 2022

Riemann merged projective geometry with the complex numbers, and all of a sudden lines became circles, circles became lines, and zero and infinity became the poles on a globe full of numbers.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife