livedo vs skin disorder

livedo and skin disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
livedo	Yes	No	No	No
skin disorder	Yes	No	No	No

As nouns, skin disorder is a hypernym of livedo; that is, skin disorder is a word with a broader meaning than livedo:

livedo: skin disorder characterized by patchy bluish discolorations on the skin
skin disorder: a disease affecting the skin

Other hypernyms of livedo include disease of the skin, skin disease.

livedo (noun)	skin disorder (noun)
skin disorder characterized by patchy bluish discolorations on the skin	a disease affecting the skin