N galaxy

noun

: a galaxy that has a brilliant starlike nucleus surrounded by a much fainter halo or extension

Word History

Etymology

nuclear

First Known Use

1969, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now