greensickness vs chlorosis

greensickness and chlorosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
greensickness	Yes	No	No	No
chlorosis	Yes	No	No	No

As nouns, greensickness and chlorosis are synonyms defined as:

greensickness and chlorosis: iron deficiency anemia in young women; characterized by weakness and menstrual disturbances and a green color to the skin

greensickness (noun)	chlorosis (noun)
iron deficiency anemia in young women; characterized by weakness and menstrual disturbances and a green color to the skin	iron deficiency anemia in young women; characterized by weakness and menstrual disturbances and a green color to the skin