Astronomer
/əˈstrɑnəmər/
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Definition
(noun) One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.
Sentence Examples
J. Kepler, astronomer and mathematician, made a study of planets and their movements.
Bradley was an English astronomer.
CEFR Practice Quiz
The ____ spent the whole night observing the stars from the hill.