A substance in vapor form that is in the presence of some of its own liquid is a _________________ vapor.

A substance in vapor form that is present alongside some of its own liquid is classified as saturated vapor. This term indicates that the vapor is in equilibrium with its liquid phase, meaning the rate of evaporation of the liquid equals the rate of condensation of the vapor. At this state, both phases exist together, and the temperature and pressure are at specific values defined by the substance's properties.

In contrast, dry vapor is completely in the vapor phase without any liquid present; superheated vapor is a vapor that has been heated beyond its boiling point at a given pressure, with no liquid phase present; and pressurized refers to a vapor that is contained under high pressure, which can include any state of vapor but does not necessarily correlate with being in equilibrium with its liquid form. Thus, the correct understanding of saturation directly aligns with the definition and conditions of a saturated vapor.