chlorosis vs greensickness

chlorosis and greensickness both are nouns.

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

As nouns, chlorosis and greensickness are synonyms defined as:

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

chlorosis (noun)	greensickness (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