soybean meal vs soy flour

soybean meal and soy flour both are nouns.

Word	Noun	Adjective	Verb	Adverb
soybean meal	Yes	No	No	No
soy flour	Yes	No	No	No

As nouns, soybean meal and soy flour are synonyms defined as:

Other synonyms of soybean meal include soybean flour.

soybean meal (noun)	soy flour (noun)
meal made from soybeans	meal made from soybeans