prime meridian
noun
: the meridian of 0 degrees longitude which runs through the original site of the Royal Observatory at Greenwich, England, and from which other longitudes are reckoned
Example Sentences
Recent Examples on the Web Longitude measure distances from the prime meridian. 
Caroline Picard, Good Housekeeping, 31 Aug. 2018
Caroline Picard, Good Housekeeping, 31 Aug. 2018 Word History
First Known Use
1884, in the meaning defined above
- kentishes
- Kentishman
- kentishmen
- kentle
- kentledge
- kentledges
- kentrogon
- kentrolite
- kents
- Kentuck
- kentuckian
- kentuckians
- kentuckies
- Kentucky
- Kentucky bass
- kentucky black bass
- Kentucky bluegrass
- Kentucky cardinal
- Kentucky coffee tree
- Kentucky flat
- kentucky green
- Kentucky jean
- Kentucky rifle
- Kentucky warbler
- Kentucky windage