gallinacean vs poultry

gallinacean and poultry both are nouns.

Word	Noun	Adjective	Verb	Adverb
gallinacean	Yes	No	No	No
poultry	Yes	No	No	No

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

gallinacean: heavy-bodied largely ground-feeding domestic or game birds
poultry: a domesticated gallinaceous bird thought to be descended from the red jungle fowl

gallinacean (noun)	poultry (noun)
heavy-bodied largely ground-feeding domestic or game birds	a domesticated gallinaceous bird thought to be descended from the red jungle fowl
	flesh of chickens or turkeys or ducks or geese raised for food