Definition of moon snail in English:

moon snail

(also moon shell)

noun

  • A marine mollusk with a shiny, almost spherical, shell and a large foot.

    • ‘She was explaining about the moon snail, which they had come across while wading.’
    • ‘Atlantic moon shells are found along most of the East Coast.’
    • ‘Moon snails are carnivorous sand dwellers feeding mainly on clams and other snails’
    • ‘Moon shells are snail-like globular forms with a half moon shaped aperture.’