Legal Question in Business Law in California

Not if the urologist is using the term.

The meanings of words depend on the context. What is the context of the use of the word? If an employer asks an applicant if they have an honorable discharge from military service, then it has nothing to do with termination. If the employer says employees who engage in sexual harassment will be dishcharged, then yes, it means the employment is terminated. If there is a criminal statute that says people are not allowed to discharge a firearm within a quarter of a mile of a residential structure, then it has a different meaning.