- Main Entry:
- as·tron·o·my
- Pronunciation:
-
\ə-ˈsträ-nə-mē\
- Function:
- noun
- Inflected Form(s):
- plural as·tron·o·mies
- Etymology:
- Middle English astronomie, from Anglo-French, from Latin astronomia, from Greek, from astr- + -nomia -nomy
- Date:
- 13th century
: the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties
