sand dollar
noun
any of various flat, disklike sea urchins, as Mellita testudinata or Echinarachnius parma, that live on sandy bottoms off the coasts of the U.S.
sand dollars
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pluralof sand dollar.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But starfish—as well as sand dollars and sea anemones—have radial symmetry, with identical segments of their body radiating out from a central point.
From Scientific American ● Nov. 3, 2023
Echinoderms are a group of animals including starfish, sea urchins and sand dollars, all of which have a five-part symmetric body layout.
From Washington Times ● Nov. 2, 2023
Footen couldn’t find traces of sand dollars when returning to the locale last fall to create a scientific baseline for future researchers to compare.
From Seattle Times ● Jul. 8, 2022
After each hike, she would pore over her phone identifying bugs, differentiating mushrooms, trying to understand how she could come across fossilized sand dollars in Scotts Valley, 560 feet above sea level.
From Los Angeles Times ● Apr. 26, 2022
Sea urchins and sand dollars do not have arms but are hemispherical or flattened with five rows of tube feet, which help them in slow movement.
From Textbooks ● Apr. 25, 2013
