Definition of pedal for English Language Learners. : 1  a flat piece of metal, rubber, etc., that you push with your foot to make a machine move, work, or stop. : 2  a lever on a piano, organ, etc., that you push with your foot to make or change a sound.
In Rome, the capital of Italy, they speak Italian. actually Rome was founded in the 700 B.C.'s so Italian wasn't a language Romans spoke all Latin.
Since Latin was very important to Christianity through many centuries, it is still spoken today during some religious activities such as prayers and cults. For the same reason, it is considered official in Vatican, where the Pope, the leader of the Roman Catholic Church, lives. People in the Vatican sometimes communicate in Latin (if they have different mother tongues) and sometimes in ceremonies.