hyperalimentation vs feeding

hyperalimentation and feeding both are nouns.

Word	Noun	Adjective	Verb	Adverb
hyperalimentation	Yes	No	No	No
feeding	Yes	No	No	No

As nouns, feeding is a hypernym of hyperalimentation; that is, feeding is a word with a broader meaning than hyperalimentation:

hyperalimentation: administration of a nutritionally adequate solution through a catheter into the vena cava; used in cases of long-term coma or severe burns or severe gastrointestinal syndromes
feeding: the act of supplying food and nourishment

Other hypernyms of hyperalimentation include alimentation.

hyperalimentation (noun)	feeding (noun)
administration of a nutritionally adequate solution through a catheter into the vena cava; used in cases of long-term coma or severe burns or severe gastrointestinal syndromes	the act of consuming food
	the act of supplying food and nourishment