sea-urchin

Определение sea-urchin в Английский Язык Английский Язык словарь: Attributive form of sea urchin
sea-urchin look.; Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern; uni
edible sea urchin: a sea urchin that can be eaten
sea urchin: spherical sea creature with a spiny exterior
sea urchin: shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
sea urchin: Any one of numerous species of echinoderms of the order Echinoidea
sea urchin: A sea urchin is a small round sea creature that has a hard shell covered with sharp points. Any of various echinoderms of the class Echinoidea, having a soft body enclosed in a round, symmetrical, calcareous shell covered with long spines. Any of about 700 species (class Echinoidea) of echinoderms found worldwide. Sea urchins have a globular body covered with movable, sometimes poisonous, spines up to 12 in. (30 cm) long. Pores along the internal skeleton accommodate slender, extensible, often sucker-tipped tube feet. Sea urchins live on the seafloor and use their tube feet or spines to move about. The mouth is on the body's underside; teeth are extruded to scrape algae and other food from rocks. Some species excavate hiding places in coral, rock, or even steel. Roe of some species is eaten in certain countries

sea-urchin

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