Definition of Lobachevsky, Nikolai Ivanovich in English:

Lobachevsky, Nikolai Ivanovich

Line breaks: Ni¦ko|lai Ivan|ovich Lo¦ba|chev¦sky
Pronunciation: /ˌlɒbəˈtʃɛfski
  • (1792–1856), Russian mathematician. At about the same time as Gauss and János Bolyai (1802–60), he independently discovered non-Euclidean geometry. His work was not widely recognized until the non-Euclidean nature of space-time was revealed by the general theory of relativity.

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Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space