Definition of Playfair, John in English:

Playfair, John

Line breaks: John Play|fair
Pronunciation: /ˈpleɪfɛː
 
/
  • (1748–1819), Scottish mathematician and geologist. A friend of James Hutton, he summarized the latter’s views for a wider readership in his Illustrations of the Huttonian Theory of the Earth (1802).

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Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
noun
(in science fiction) navigation in outer space