1. Pertaining to astronomy.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• astronome,
• astronomist,
• gastronimic,
• astronomicle,
• astronomicly,
• gastonomic,
• astronomyn,
• astrolomaa,
• zstronomic,
• sstronomic,
• wstronomic,
• qstronomic,
• aatronomic,
• aztronomic,
• axtronomic,
• astronimic,
• astronmic,
• astronomical,
• astrologic,
• Astronic

• astrophysical,
• astrological,
• astropogon,
• astronautics,
• astrocyte,
• astroloma,
• astrodome,
• astronomy,
• astrophyton,
• astronautic,
• astronomical,
• astronomer,
• astrocytic,
• astronium,
• astrodynamics,
• astronaut,
• astrometry,
• astronautical,
• astrophysics.

The adjective form of the word "astronomic" is "astronomical".

The plural form of the word "astronomic" is "astronomics".

The singular form of the word "astronomic" is "astronomy"