Astro- Definition

astrō, astrə
prefix
Star.
Astrophysics.
American Heritage
Celestial body.
Astrometry.
American Heritage
Outer space.
Astronaut.
American Heritage
The aster of a cell.
Astrosphere.
American Heritage
affix
Star or stars.
Astrophysics.
Webster's New World
Of an aster in mitosis.
Astrosphere.
Webster's New World
noun
(baseball) A player on the team the "Houston Astros".
Jones became an Astro as the result of a pre-season trade.
Wiktionary

Other Word Forms of Astro-

Noun

Singular:
astro-
Plural:
astros

Origin of Astro-

  • Greek from astron star ster-3 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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