PRODROME
prodrome, prodroma
(noun) an early symptom that a disease is developing or that an attack is about to occur
Source: WordNet® 3.1
Etymology
Noun
prodrome (plural prodromes)
(rare) A precursor or harbinger; also a warning event.
An introductory or preliminary book or treatise.
(medicine) An early symptom warning of the onset of a disease.
Synonyms
• (introductory book): prodromus (archaic)
Adjective
prodrome (not comparable)
(obsolete) Prodromous.
Source: Wiktionary
Pro"drome, n. Etym: [Gr. prodrome.]
Definition: A forerunner; a precursor.
Source: Webster’s Unabridged Dictionary 1913 Edition