Which item is not a designation of a version?

The designation of a version typically refers to specific orientations or variations, often used in contexts like genetics or biological sciences. Each of the first three choices corresponds to recognized terms that describe various directional modifications.

Levoversion refers to a leftward version, often used in relation to the positioning of structures; Sursumversion indicates an upward orientation; and Dextroversion signifies a rightward version. In contrast, "intraversion" does not correspond to any established term associated with directional versions or orientations. Instead, it is a term more closely associated with psychological concepts, particularly introversion in personality theories. Therefore, the correct answer indicates a term that does not fit within the established designations of a version based on directional orientation.