polio vs acute anterior poliomyelitis

polio and acute anterior poliomyelitis both are nouns.

Word	Noun	Adjective	Verb	Adverb
polio	Yes	No	No	No
acute anterior poliomyelitis	Yes	No	No	No

As nouns, polio and acute anterior poliomyelitis are synonyms defined as:

polio and acute anterior poliomyelitis: an acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord

Other synonyms of polio include infantile paralysis, poliomyelitis.

polio (noun)	acute anterior poliomyelitis (noun)
an acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord	an acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord