Definition of sand dollar in English:

sand dollar


  • A flattened sea urchin which lives partly buried in sand, feeding on detritus.

    Order Clypeasteroida, class Echinoidea

    • ‘‘We have lots of double looneys,’ Bernice informed him, and lifting out a cardboard box she opened the lid to reveal a collection of sand dollar shells, scrubbed clean to reveal their distinctive five-looped imprint.’
    • ‘Seashells sang of dolphin tales, and sand dollars could be exchanged for coral necklaces from the nearby childish entrepreneur.’
    • ‘Scattered on the cloth are pinecones and seashells, a sand dollar, a starfish, a sea urchin.’
    • ‘Amplaster contains among the most bizarre of all sand dollar taxa.’
    • ‘The number of fresh grains encountered by the barrel-tipped podia can be dramatically increased by increasing the width of the test, relative to the overall size of the sand dollar.’
    • ‘Larger systems are made of smaller parts, all the way down to the bits of dead eelgrass and the sand dollar and the specks its indigo bristles push toward the circle of its five tiny jaws.’
    • ‘It is only in the context of a complete phylogeny that the preceding species-level revision can have any relevance to our understanding of the evolution of this important group of sand dollars.’
    • ‘Crinoids are a class of the phylum Echinodermata, which includes living starfishes, sand dollars and sea urchins, as well as approximately six hundred living species of crinoids.’
    • ‘Arrange the sand dollars and shell ornaments along one strand of pearls in a pleasing configuration.’
    • ‘This study examines skeleton remodelling and resorption in larvae of the common sand dollar Echinarachnius parma and the green sea urchin Strongylocentrotus droebachiensis.’
    • ‘Postulated as basal lunulate taxa, the monophorasterids are very important to our understanding of major events in the origins of the New World sand dollar faunas.’
    • ‘The ambulacral series of plates are conspicuous in the cleaned test of a sand dollar: restricted to the aboral side, they are arrayed in a petaloid pattern.’
    • ‘At all developmental stages sand dollars exhibit higher relative activities of p-gp activity than sea urchins.’
    • ‘Although she used to collect Beanie babies, now she mainly collects pins and sand dollars.’
    • ‘These and other attributes have been used to develop scenarios for the origin and evolution of New World sand dollar clades, notably the lunulate forms.’
    • ‘The board had a design of a starfish, shells, and sand dollars on it.’
    • ‘Echinoids are one of the more diverse and successful echinoderm groups today, including familiar echinoderms such as the sea urchins and sand dollars.’
    • ‘The prizes were sand dollars, wafer-thin discs with a star-shaped imprint left by its deceased inhabitant.’
    • ‘We discuss the implications of these findings in the context of major evolutionary events in the history of these sand dollars from the Eocene to the present.’
    • ‘I want to walk on the beach, wear rubber boots and collect sand dollars when the tide goes out.’