durocEtymologyEarly 19th century, from the name of a stallion said to have been bought by the breeder, Isaac Frinck, on the same day as the pigs from which he developed the breed.duroc means A pig of a reddish breed developed in North America. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nounA pig of a reddish breed developed in North America.