Prosopagnosia (Face Blindness)
Here's your citation in American Psychological Association (APA) format:
Prosopagnosia (Face Blindness). (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Prosopagnosia+%28Face+Blindness%29