noun🔗ShareアンモナイトAny of an extinct group of cephalopods of the subclass Ammonoidea; a fossil shell of such an animal."While hiking, we found a beautiful, spiral-shaped ammonite embedded in a rock, a reminder of ancient sea creatures. "ハイキング中に、岩に埋め込まれた美しい螺旋状のアンモナイトを見つけ、古代の海の生き物を思い出しました。geologyanimalarchaeologybiologypastChat with AIVocabulary GamePractice Reading
noun🔗Shareアンモン爆薬An explosive prepared from a mixture of TNT and ammonium nitrate; a form of amatol, popular in Eastern Europe and China."The demolition crew used ammonite to break up the old building. "解体作業員は古い建物を解体するためにアンモン爆薬を使用した。compoundsubstancematerialchemistryweaponmilitaryscienceChat with AIVocabulary GamePractice Reading
