petroEtymologyUltimately from Koine Greek Πέτρος (Pétros).nounA Venezuelan cryptocurrency launched in 2018, supposed to be backed by the country's oil and mineral reserves. Symbol: ₽.In Haitian voodoo, a class of loa of uncertain origin, chiefly associated with fierceness or aggression.“Whereas the Rada drumming and dancing are on beat, the Petro are offbeat, sharp, and unforgiving, like the crack of a rawhide whip.”nameA transliteration of the Carpathian Rusyn, Pannonian Rusyn, or Ukrainian male given name Петро (Petro), equivalent to Peter.A surname.