expectorator vs spitter

expectorator and spitter both are nouns.

Word	Noun	Adjective	Verb	Adverb
expectorator	Yes	No	No	No
spitter	Yes	No	No	No

As nouns, expectorator and spitter are synonyms defined as:

expectorator and spitter: a person who spits (ejects saliva or phlegm from the mouth)

expectorator (noun)	spitter (noun)
a medicine promoting expectoration	an illegal pitch in which a foreign substance (spit or Vaseline) is applied to the ball by the pitcher before he throws it
a person who spits (ejects saliva or phlegm from the mouth)	a person who spits (ejects saliva or phlegm from the mouth)