noun🔗ShareБактерияA single celled organism with cell walls but no nucleus or organelles."The scientist examined the sample and found a bacterium, a tiny cell without a nucleus, under the microscope. "Ученый исследовал образец и обнаружил под микроскопом бактерию, крошечную клетку без ядра.organismbiologymicroorganismscienceChat with AIVocabulary GamePractice Reading