prodrome vs prodroma

prodrome and prodroma both are nouns.

Word	Noun	Adjective	Verb	Adverb
prodrome	Yes	No	No	No
prodroma	Yes	No	No	No

As nouns, prodrome and prodroma are synonyms defined as:

prodrome and prodroma: an early symptom that a disease is developing or that an attack is about to occur

prodrome (noun)	prodroma (noun)
an early symptom that a disease is developing or that an attack is about to occur	an early symptom that a disease is developing or that an attack is about to occur