- Descriptive of a material that transmits light, but diffuses itsufficiently that an object cannot be seen clearly through the material.
- That which transmits light, but is not completely transparent. The light diffusion present enables objects to be seen, but not clearly. Examples include porcelain and frosted glass. optical density is a measure of the opacity of a translucent body, material, or medium.
- adjective allowing light to pass through, but not enough to allow objects on the other side to be clearly distinguished