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Noun: Galileo  ,ga-li'ley-ow
  1. Italian astronomer and mathematician who was the first to use a telescope to study the stars; demonstrated that different weights descend at the same rate; perfected the refracting telescope that enabled him to make many discoveries (1564-1642)
    - Galileo Galilei

Type of: astronomer, stargazer, uranologist

Encyclopedia: Galileo