From a dictionary perspective, you're right. From a business legal risk-avoidant and financial self-protection perspective, you're dead wrong. Words are often used with a context-specific definition, and you're not supposed to use the word 'discrimination' at all in a workplace. Because it will cause the legal and HR departments more work, and therefore cost the organisation more.
Just let the HR rep do the script and teach you how to avoid accountability when prioritising profit over people. It's less painful that way.