alma mater
noun(also Alma Mater)
[singular] (especially North American English)the school, college or university that somebody went to 母校 He donated $20 million to his alma mater, Columbia University. 他向母校哥伦比亚大学捐赠了2000万美元。
Word Originmid 17th cent. (in the general sense ‘someone or something providing nourishment’): Latin, literally ‘generous mother’.