The term leaded glass either refers to:

• glass containing lead oxide , which increases its density and enhances its refraction and dispersion of light. Flint glass is often leaded; it is fashioned into rhinestones which are used to imitate diamond.
• glass having lead added as an impediment to the transmission of radiation, as used in aircraft used in testing nuclear weapons.
• glass panels made by combining multiple small pieces glass, which may be stained, textured or beveled, with cames.