anoxia vs anoxic anoxia

anoxia and anoxic anoxia both are nouns.

Word	Noun	Adjective	Verb	Adverb
anoxia	Yes	No	No	No
anoxic anoxia	Yes	No	No	No

As nouns, anoxic anoxia is a hyponym of anoxia; that is, anoxic anoxia is a word with a more specific, narrower meaning than anoxia:

anoxia: severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues
anoxic anoxia: anoxia resulting from defective oxygenation of the blood in the lungs

Other hyponyms of anoxia include anemic anoxia, ischemic anoxia, stagnant anoxia.

anoxia (noun)	anoxic anoxia (noun)
severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues	anoxia resulting from defective oxygenation of the blood in the lungs