astronomy NOUN the science of celestial objects, space, and the physical universe.
DERIVATIVES astronomer noun.

English terms dictionary. 2015.

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  • Astronomer — As*tron o*mer, n. [See {Astronomy}.] 1. An astrologer. [Obs.] Shak. [1913 Webster] 2. One who is versed in astronomy; one who has a knowledge of the laws of the heavenly orbs, or the principles by which their motions are regulated, with their… …   The Collaborative International Dictionary of English

  • astronomer — late 14c., from ASTRONOMY (Cf. astronomy) (q.v.), replacing French import astronomyen (c.1300), which, had it survived, probably would have yielded *astronomian. Still in Shakespeare used in places where we would write astrologer …   Etymology dictionary

  • astronomer — [ə strän′ə mər] n. an expert in astronomy …   English World dictionary

  • Astronomer — Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using physical laws. Today, that distinction has… …   Wikipedia

  • astronomer — UK [əˈstrɒnəmə(r)] / US [əˈstrɑnəmər] noun [countable] Word forms astronomer : singular astronomer plural astronomers someone who studies the stars and planets using scientific equipment including telescopes …   English dictionary

  • astronomer — noun /əstɹɒnəʊmə/ One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics See Also: Astronomer Royal …   Wiktionary

  • astronomer — [[t]əstrɒ̱nəmə(r)[/t]] astronomers N COUNT An astronomer is a scientist who studies the stars, planets, and other natural objects in space …   English dictionary

  • astronomer — noun Date: 14th century a person who is skilled in astronomy or who makes observations of celestial phenomena …   New Collegiate Dictionary

  • astronomer — /euh stron euh meuhr/, n. an expert in astronomy; a scientific observer of the celestial bodies. [1325 75; ME; see ASTRONOMY, ER1] * * * …   Universalium

  • astronomer — I (Roget s IV) n. Syn. stargazer, astrochemist, astrophysicist, astrophotographer, astrophotometrist, cosmologist, uranologist, uranographer; see also scientist . II (Roget s 3 Superthesaurus) n. stargazer, cosmologist, astrophysicist …   English dictionary for students