The meaning of ASTRONOMICAL is of or relating to astronomy. How to use astronomical in a sentence.

Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry to explain their origin and their overall …

ASTRONOMICAL definition: 1. connected with astronomy: 2. An astronomical amount is extremely large: 3. connected with…. Learn more.

ASTRONOMICAL definition: of, relating to, or connected with astronomy. See examples of astronomical used in a sentence.

1. Of or relating to astronomy. 2. Of enormous magnitude; immense: an astronomical increase in the deficit.

If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large indeed.

Dec 14, 2025 · astronomical (comparative more astronomical, superlative most astronomical) Drawings and pictures are more than mere ornaments in scientific discourse.

There are four meanings listed in OED's entry for the word astronomical, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Britannica Dictionary definition of ASTRONOMICAL 1 : of or relating to astronomy astronomical research 2 : extremely large

1 day ago · Meteorological winter began on Dec. 1 while astronomical winter began on Dec. 21. Astronomical seasons are based on the Earth's position in connection with the sun.