noun🔗ShareA nonessential amino acid, amino-acetic acid, C2H5NO2 found in most proteins but especially in sugar cane; the simplest amino acid."Many athletes take supplements containing glycine to help with muscle recovery after intense workouts because it's a building block for protein. "biochemistrybiologymedicinechemistrysubstancecompoundphysiologyscienceChat with AIVocabulary GamePractice Reading