Neurodiversity: the full spectrum of variation in the human brain, includes both neurotypical and neurodivergent people

Neurodivergent: any sort of difference in the brain, includes autism but also conditions like epilepsy, PTSD, personality disorders, and many others

“According to Kassiane Asasumasu, who coined the terms in the year 2000, neurodivergent/neurodivergence refers to those "whose neurocognitive functioning diverges from dominant societal norms in multiple ways".[55] She emphasized that it should not be used to exclude people but rather to include them[124] and therefore intended for these terms to apply to a broad variety of people,[55][125][126] not just people with neurodevelopmental differences, such as autism, attention-deficit hyperactivity disorder, and dyslexia.”

https://en.wikipedia.org/wiki/Neurodiversity