Arroba

An arroba was a Spanish and Portuguese unit of weight, mass or volume. Its symbol is @. In weight it is equal to about 25 pounds. In the Spanish language and Portuguese language, the term arroba has now become synonymous with the symbol due to its use in e-mail addresses. The word arroba has its origin in Arabic ar-rubʿ (الربع), the fourth part (of a quintal). Arroba is widely used in Brazil and other countries as weight unit for cattle

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