alimentary paste vs pasta

alimentary paste and pasta both are nouns.

Word	Noun	Adjective	Verb	Adverb
alimentary paste	Yes	No	No	No
pasta	Yes	No	No	No

As nouns, alimentary paste and pasta are synonyms defined as:

alimentary paste and pasta: shaped and dried dough made from flour and water and sometimes egg

alimentary paste (noun)	pasta (noun)
shaped and dried dough made from flour and water and sometimes egg	shaped and dried dough made from flour and water and sometimes egg
	a dish that contains pasta as its main ingredient