astr-

combining form

variants or astro-

1

: star

astroid

astrometer

: the heavens

astrography

astronautics

: astronomical

astrophysics

2

: astrological

astrodiagnosis

: astrological and

astromedical

3

: aster in cells

astrosphere

Word History

Etymology

Middle English astro-, from Old French, from Latin astr-, astro-, from Greek, from astron star

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