1The angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes: at a longitude of 2° W lines of longitude
More example sentences
- Firstly, remember that your longitude is the angular distance West of the Greenwich meridian.
- Every four minutes of difference would indicate 1 degree of longitude to the east or the west.
- Not by accident, he used Harrison's chronometer and lunar distances to calculate longitudes accurately.
1.1 Astronomy see celestial longitude.
late Middle English (also denoting length and tallness): from Latin longitudo, from longus 'long'.
Definition of longitude in:
- The British & World English dictionary