What is nerd?

Could you Mean GERD?: I'm unaware of a condition called nerd except for maybe some colleagues & it's been said about me! there's a condition called gerd gastro-esophogeal reflux deisease. With it, the muscle that keeps stomach contents from getting in the esophagus doesn't do it's job so acid flows back and causes heartburn & ultimately damage. Treatment is meds 1st then surgery if that fails. Hope this helps.

A nerd is: Someone who is absorbed in technology and often introverted.