noun🔗ShareLactobacillesAny of many rod-shaped, nonmotile, aerobic bacteria, of the genus Lactobacillus, that ferment sugars to form lactic acid"Yogurt contains lactobacilli, which help make it thick and tangy. "Le yaourt contient des lactobacilles, qui contribuent à le rendre épais et acidulé.organismmicroorganismbiologysciencemedicinebiochemistryChat with AIVocabulary GamePractice Reading