IV vs alimentation

IV and alimentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
IV	Yes	No	No	No
alimentation	Yes	No	No	No

As nouns, alimentation is a hypernym of IV; that is, alimentation is a word with a broader meaning than IV:

Other hypernyms of IV include feeding.

IV (noun)	alimentation (noun)
administration of nutrients through a vein	the act of supplying food and nourishment
the cardinal number that is the sum of three and one	a source of materials to nourish the body