what is opaque
The definition of opaque is not capable of having light pass through or hard to understand. 1  An example of opaque is the quality of a black sheet of paper. 2  An example of opaque is the study of astrophysics.
Full Definition of TRANSPARENT. 1. a (1) : having the property of transmitting light without appreciable scattering so that bodies lying beyond are seen clearly: pellucid (2) : allowing the passage of a specified form of radiation (as X-rays or ultraviolet light) b: fine or sheer enough to be seen through: diaphanous. 2.