al·ma ma·ter or Al·ma Ma·ter 
(ăl′mə mätər, äl′mə)
(ăl′mə mätər, äl′mə)n.
1. The school, college, or university that one has attended.
2. The anthem of an institution of higher learning.
[From Latin Alma Māter, nourishing mother (epithet of certain goddesses) : alma, feminine of almus, nourishing; see al-2 in the Appendix of Indo-European roots + māter, mother; see MATERNAL.]