sand dollars

Английский Язык - Турецкий язык

Английский Язык - Английский Язык

Определение sand dollars в Английский Язык Английский Язык словарь: plural form of sand dollar
sand dollar: An echinoderm, of the order Clypeastroida, that has a flat, disk-shaped body with the mouth in a mid-ventral position, and lives in sand, on or near the surface
sand dollar: flattened disklike sea urchins that live on sandy bottoms
sand dollar: Any echinoderm (order Clypeastroida, class Echinoidea) that has a coinlike, thin-edged body. Five "petals" spread out from the center of the upper body. It burrows in sand, feeding on organic particles wafted to the mouth, located in the center of the body's underside. Small spines covering the body are used for digging and crawling. Tests (external skeletons) of the common sand dollar (Echinarachnius parma), which often wash up on beaches in North America and Japan, are 2-4 in. (5-10 cm) in diameter