Definition of guide meridian
: a line that is marked by monuments, that runs north and south between other more carefully established meridians, and that is used for reference in surveying
What's Trending Now
More Trending Words
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up guide meridian? Please tell us where you read or heard it (including the quote, if possible).
