pea flour vs meal

pea flour and meal both are nouns.

Word	Noun	Adjective	Verb	Adverb
pea flour	Yes	No	No	No
meal	Yes	No	No	No

As nouns, meal is a hypernym of pea flour; that is, meal is a word with a broader meaning than pea flour:

pea flour: meal made from dried peas
meal: coarsely ground foodstuff; especially seeds of various cereal grasses or pulse

pea flour (noun)	meal (noun)
meal made from dried peas	the food served and eaten at one time
	coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
	any of the occasions for eating food that occur by custom or habit at more or less fixed times