Definition of fettuccine Alfredo
: a dish consisting of fettuccine with butter, Parmesan cheese, cream, and seasonings —called also fettuccine all'Alfredo \-ˌal-(ˌ)al-, -ˌäl-(ˌ)äl-\
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Origin and Etymology of fettuccine alfredo
from Alfredo all'Augusteo, restaurant in Rome where it originated
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