noun🔗Share棘皮動物An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars."While visiting the aquarium, my daughter learned that a starfish is an echinoderm with five arms and a spiny surface. "水族館を訪れた際、私の娘はヒトデが五本の腕とトゲのある表面を持つ棘皮動物であることを学びました。animalbiologyoceannaturescienceChat with AIVocabulary GamePractice Reading
