Meaning ofmarein English

Noun

1. an adult female horse
2. a nightmare; frustrating experience
3. a dark plain on a planet's surface; lunar feature
   The spacecraft imaged a large mare on the moon's surface.
4. large lakes of liquid hydrocarbons (on Titan)
   Scientists discovered a mare of liquid methane on Titan's surface.
5. a large, dark planetary region (like a sea)
   The astronauts explored a vast mare on the distant planet.