PRIME MERIDIAN

Pronunciation (US):

 Dictionary entry overview: What does prime meridian mean? 

• PRIME MERIDIAN (noun)
  The noun PRIME MERIDIAN has 1 sense:

1. meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England)

  Familiarity information: PRIME MERIDIAN used as a noun is very rare.

 Dictionary entry details 

• PRIME MERIDIAN (noun)

Meaning:

Meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England)

Classified under:

Nouns denoting spatial position

Hypernyms ("prime meridian" is a kind of...):

line of longitude; meridian (an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator)

Instance hyponyms:

Greenwich Meridian (the meridian passing through Greenwich; was internationally adopted as the earth's zero of longitude in 1884)