Etymology Borrowed from Middle French desordre (modern French désordre), from Old French desordre, from des- + ordre; by surface analysis, dis- + order (<< Latin ōrdō). Compare typologically Russian непоря́док (neporjádok), беспоря́док (besporjádok), неуря́дица (neurjádica) (akin to ряд (rjad), поря́док (porjádok)).
1
Absence of order; state of not being arranged in an orderly manner.
After playing the children left the room in disorder.
It was a household in permanent and benevolent disorder, pervaded by the gentle thrill of religious persecution.1986, John le Carré, A Perfect Spy:
2
A disturbance of civic peace or of public order.
The class was thrown into disorder when the teacher left the room
The army tried to prevent disorder when claims the elections had been rigged grew stronger.
1 more example
The police isn't there to create disorder; the policeman is there preserve disorder.1997, Jules Witcover, quoting Richard J. Daley, The Year the Dream Died: Revisiting 1968 in America, New York: Warner Books, →ISBN, →LCCN, page 353:
3
Medicine, Sciences A physical or mental malfunction.
Near-synonyms: disease, illness (both often synonymous)
Bulimia is an eating disorder.
1 more example
A very rare polymorphism in the prion protein gene recently has been identified that appears to protect against prion disease; this finding, in addition to providing greater understanding of the prionlike mechanisms of neurodegenerative disorders, might lead to potential treatments.2015 December 21, Michael D. Geschwind, “Prion Diseases”, in Continuum (Minneap Minn), →DOI:
Etymology Borrowed from Middle French desordre (modern French désordre), from Old French desordre, from des- + ordre; by surface analysis, dis- + order (<< Latin ōrdō). Compare typologically Russian непоря́док (neporjádok), беспоря́док (besporjádok), неуря́дица (neurjádica) (akin to ряд (rjad), поря́док (porjádok)).