disorder
n. countablen. an illness or condition that stops a part of your body or mind from working normally. You often hear this word used to describe mental health conditions or physical diseases.
n. a physical or mental condition that disrupts the normal functioning of the body or mind. Frequently used in medical contexts to classify specific syndromes or diseases.
He was diagnosed with a rare blood disorder.
The clinic specializes in treating sleep disorders, helping patients who struggle with insomnia and sleep apnea.
The researchers are investigating whether the genetic mutation directly causes the neurological disorder or merely increases a patient's susceptibility to environmental triggers.
Borrowed from Middle French desordre (modern French désordre), from Old French desordre, from des- + ordre; by surface analysis, dis- + order.
Countable when referring to a specific medical condition; uncountable when describing a general state of chaos or confusion.