milo vs milo maize

milo and milo maize both are nouns.

Word	Noun	Adjective	Verb	Adverb
milo	Yes	No	No	No
milo maize	Yes	No	No	No

As nouns, milo and milo maize are synonyms defined as:

milo and milo maize: small drought-resistant sorghums having large yellow or whitish grains

milo (noun)	milo maize (noun)
small drought-resistant sorghums having large yellow or whitish grains	small drought-resistant sorghums having large yellow or whitish grains