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Related to Roc (disambiguation): Region of convergence
(in Arabian legend) a bird of enormous size and power
A unit of electrical conductivity equal to the conductivity of a material in which an electric field of 1 volt per centimeter gives rise to a current density of 1 ampere per square centimeter. Derived from reciprocal ohm centimeter.
white bird of enormous size. [Arab. Lit.: Arabian Nights, “Second Voyage of Sindbad the Sailor”]