noun ダウンロード 🔗共有 刺胞動物 Any of various invertebrate animals, such as jellyfish, hydras, sea anemones, corals and formerly sponges and ctenophores that belong to the phylum Cnidaria. Examples : "While swimming in the ocean, we saw a beautiful jellyfish, a type of cnidarian. " 海で泳いでいると、美しいクラゲ、刺胞動物の一種を見ました。 animal biology ocean nature AIとチャット語彙ゲーム読解練習