خس

خَسٌّ خس [ Lettuce; lactuca; ] a certain plant, (S, Msb, K,) of the kind called بَقْل, (S, K,) well known, (Msb, K,) of the description termed أَحْرَار, [i. e., that are eaten without being cooked, or that are slender and succulent, or slender and soft, ] with broad leaves: it increases the blood: the wild kind has the property of the black poppy: the best is the garden-kind, [ lactuca sativa, ] which is succulent, yellow, and broad [ in the leaf ]: it is cold and moist in temperament: the most nutritious is that which is cooked; and it is useful for counteracting contrariety of the fluids; but the eating it constantly weakens the sight, and is injurious to the venereal faculty: (TA:) n. un. with ة. (Msb.)