No, one does not. Though it's a Latin term, it is has been adopted into the English language and thus needn't be italicized as one would other non-English language words. In contrast, alma mater's plural, almae matres, should be italicized if one opts for the Latin spelling; however, "alma maters" is also acceptable. I recommend, mainly to avoid seeming pompus or pedantic, eschewing the Latin spelling when writing for unknown readers, many of whom one can expect are unfamiliar with Latin. Writing for an academic audience, one may feel more at ease using more "flowery" language.
alma mater
The Tagalog word for alma mater is "pinanggalingan" or "pamantasan."
Alma mater (Latin: "nourishing mother")
Who wrote the alma mater Southern sun and sky blue water Smile upon you alma mater
Alma mater means nourishing mother in Latin. So the school or college which nourished you spiritually is your alma mater.
Penn State Alma Mater was created in 1901.
A college or seminary where one is educated.
The school you graduated from is your alma mater. ----
Donate to it, cheer for it
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Alma Mater - 1969 TV is rated/received certificates of: Germany:12
Alma mater - 1915 was released on: Italy: 17 April 1915 USA: November 1915