sand dollar en · NOUN
Meanings
-
Any echinoderm of the order Clypeasteroida, having a flat, disk-shaped body with the mouth in a mid-ventral position, and living in sand, on or near the surface.
If you look carefully, a sand dollar is merely a sea urchin in flattened form.
2001, Jennifer Hahn, Spirited Waters: Soloing South Through the Inside Passage, published 2009, page 135:In the sand dollars, the arrangement of the food grooves and consequently the lateral water vessels and their accessory tube feet is more complex (Phelan 1977).
1987, John M. Lawrence, chapter I, in A Functional Biology of Echinoderms, page 75:Adult echinoderms have a five-part body plan corresponding to the arms of a sea star or the design on the "shell" of a sand dollar.
2000, Sandra Alters, chapter I, in Biology: Understanding Life, page 692:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| sand dollars | Number=Plur | lexicographic |
Deriveds
Bahamian sand dollar · eccentric sand dollar · keyhole sand dollar
Synonyms
clypeasteroid · sand cookie · sea cookie
Translations (12)
pt bolacha-da-praia (any echinoderm of the order Clypeasteroida) · es galleta de mar (any echinoderm of the order Clypeasteroida) · fr oursin-biscuit (any echinoderm of the order Clypeasteroida) · it riccio di mare (any echinoderm of the order Clypeasteroida) · de Sanddollar (any echinoderm of the order Clypeasteroida) · pl dolar piaskowy (any echinoderm of the order Clypeasteroida) · ko 연잎성게 (any echinoderm of the order Clypeasteroida) · fi hietadollari (any echinoderm of the order Clypeasteroida) · pt bolacha-do-mar (any echinoderm of the order Clypeasteroida) · it riccio (any echinoderm of the order Clypeasteroida) · cmn 沙錢 /沙钱 (any echinoderm of the order Clypeasteroida) · es dólar de arena (any echinoderm of the order Clypeasteroida)