柯林斯词典amino acid /əˈmiːnəʊ ˈæsɪd, ˈæmɪnəʊ/ (amino acids) 1. N-COUNT Amino acids are substances containing nitrogen and hydrogen that are found in proteins. Amino acids occur naturally in the body. 氨基酸[usu pl] 返回 amino acid剑桥词典any of the chemical substances found in plants and animals that combine to make protein (= a substance necessary for the body to grow ) 氨基酸，胺酸 返回 amino acid