Definition of Hipparchus in English:

Hipparchus

Syllabification: Hip·par·chus
Pronunciation: /hiˈpärkəs
 
/
( Circa 170-after 126 bc), Greek astronomer and geographer. He is best known for his discovery of the precession of the equinoxes and is credited with the invention of trigonometry.

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Word of the day fioritura
Pronunciation: fɪˌɔːrɪˈt(j)ʊərə
noun
an embellishment of a melody...