prodroma

Noun

prodrome (plural prodromes)

1. (rare) A precursor or harbinger; also a warning event.
   • These may prove the Prodromes […] to the ruin of our Monarchy.1643, Lawrence Womack, Sober Sadness, page 45; quoted in The American encyclopædic dictionary, Volume 7, page 3252, published 1897
2. An introductory or preliminary book or treatise.
   • (archaic)

   Synonyms:

   prodromus

3. An early sign or symptom (or set of signs and symptoms) warning of the onset of a disease.
   • It is becoming increasingly recognised that bipolar, like schizophrenia, has a prodromal phase which can be identified prior to development of the full illness. However, one issue with research into this area is the potential conflation of the concepts of a prodrome for bipolar, referring to...2018 April 26, Tobias A Rowland, Steven Marwaha, “Epidemiology and risk factors for bipolar disorder”, in Therapeutic Advances in Psychopharmacology, volume 8, number 9, →DOI, pages 251–269

See all 4 meanings of prodrome