Definition of astro- in English:

astro-

Pronunciation: /ˈastrəʊ/

combining form

1Relating to the stars or celestial objects: astrodome astrophotography
1.1Relating to outer space: astrochemistry

Origin

from Greek astron 'star'.

Definition of astro- in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected