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1787, Latin, literally "of one's own kind, peculiar." First element from sui, genitive of suus "his, her, its, one's," from Old Latin sovos, from PIE root *swe-, pronoun of the third person (see idiom).
A person or thing that is unique, in a class by itself: “She is an original artist; each of her paintings is sui generis.” From Latin, meaning “of its own kind.”
town, Balochistan province, southern Pakistan, located northeast of Jacobabad. It rose to importance in 1950-51 through the discovery of one of the world's largest natural-gas deposits. Operations began in 1955 with the laying of pipelines to provide a cheap source of fuel and power for industries in Hyderabad, Karachi, and Sukkur. Lines were extended to Multan (1958), Lahore, Faisalabad (formerly Lyallpur), and Hatar (1970). Besides generating power, Sui gas is used for fertilizer production and as a basis for Pakistan's growing petrochemical industry.