The R word is a word used all the time. Just because you only know it as a neurological slur, doesn’t mean we censor it for your sake
But, yes, it was used as a slur specific to neurology in this case, arguably. So, “Learn what the word ‘retard’ means, you morons.” would’ve been a more appropriate response, apparently…
Edit: Sorry, so many typos. I’ve had a couple scotches. Need a scotch retardant. WATER!!!












Still is a medical term, for example, a retarded dose is one where the drug is released at a slowed pace.
Same usage as retarded timing in engines by delaying the spark. Then there’s all the chemical retarders for delaying reactions, like in mixing concrete or epoxy.
If you know music, you know ritard on tempo control.
If you get offended by “the R word” don’t ever become a pilot because the cockpit will exclaim “Retard! Retard! Retard!” on landing when you’ve neglected the throttle and it needs to be shortened.
Because of exactly what it means, it’s super common and useful. Ignorant people’s minds just go straight to a slur, probably because they used to use it as one.