sand dollar

noun

Definition of sand dollar

  1. :  any of numerous flat circular sea urchins (order Clypeasteroida) that live chiefly in shallow water on sandy bottoms

Illustration of sand dollar

First Known Use of sand dollar

1884


SAND DOLLAR Defined for English Language Learners

sand dollar

noun

Definition of sand dollar for English Language Learners

  • : the round, flat shell of a small sea animal; also : the small sea animal itself


SAND DOLLAR Defined for Kids

sand dollar

noun

Definition of sand dollar for Students

  1. :  a flat round sea urchin


Learn More about sand dollar


Seen and Heard

What made you want to look up sand dollar? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to reach the highest or a decisive point

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!