How do you define a galaxy?

Answer 1

The word galaxy derives from the Greek term for our own galaxy, galaxias (γαλαξίας), or kyklos galaktikos, meaning "milky circle" for its appearance in the sky.

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Answer 2

The word galaxy derives from Greek galaxias (γαλαξίας), or kyklos galaktikos, meaning "milky circle" for its appearance in the sky.

In Greek mythology, Zeus places his son born by a mortal woman, the infant Heracles, on Hera's breast while she is asleep so that the baby will drink her divine milk and will thus become immortal. Hera wakes up while breastfeeding and then realizes she is nursing an unknown baby: she pushes the baby away and a jet of her milk sprays the night sky, producing the faint band of light known as the Milky Way. See related links for more information
The word galaxy means a group of stars, for instance the Milky Way is a galaxy.

Answer 3

A 'galaxy' can be defined as follows:
1) any disk-shaped, elliptically-shaped, or irregularly shaped luminous cluster of stars and interstellar matter occupying a vast region of space that is held together by gravitation and is one of the components that make up the observable universe
2) the disk-shaped luminous cluster of stars and interstellar matter that stretches over a vast region of the night sky of which the solar system is a part; the Milky Way, also called the Milky Way Galaxy or simply the Galaxy
3) a group of outstanding performers in any line of work

Answer 4

Here is how I define the word 'galaxy':

NOUN

1) a single distinct, gravitationally bound interstellar system in space that is believed to contain a very massive black hole in its center and coming in various shapes such as spiral, barred spiral, elliptical, and irregular

2) the interstellar system containing the Earth and seen edge-on as a luminous band of starlight stretching across the night sky

3) any group of famous or successful people in a given field of activity or of distinct objects

Answer 5

There are so many names like the Milky Way, Andromeda, Comet Galaxy, and so many more. Look at the related link for a big list of galaxy names.

Answer 6

A galaxy is an enormous gravitationally-bound interstellar system that rotates about a common center.