maltose vs malt sugar

maltose and malt sugar both are nouns.

Word	Noun	Adjective	Verb	Adverb
maltose	Yes	No	No	No
malt sugar	Yes	No	No	No

As nouns, maltose and malt sugar are synonyms defined as:

maltose and malt sugar: a white crystalline sugar formed during the digestion of starches

maltose (noun)	malt sugar (noun)
a white crystalline sugar formed during the digestion of starches	a white crystalline sugar formed during the digestion of starches