the act of passing; passage through or over.-the act or process of causing to pass; conveyance; as, the transit of goods through a country.-a line or route of passage or conveyance; as, the nicaragua transit.-the passage of a heavenly body over the meridian of a place, or through the field of a telescope.-the passage of a smaller body across the disk of a larger, as of venus across the sun's disk, or of a satellite or its shadow across the disk of its primary.-an instrument resembling a theodolite, used by surveyors and engineers; -- called also transit compass, and surveyor's transit.-to pass over the disk of (a heavenly body).