Definition of astro- in English:


Syllabification: astro-

combining form

Relating to the stars, celestial objects, or outer space: astrocompass astrophysics astrochemistry astrophotography


from Greek astron 'star'.

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Definition of astro- in:

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Word of the day semblance
Pronunciation: ˈsɛmbləns
the outward appearance or apparent form of something…