educationalist vs specialist

educationalist and specialist both are nouns.

Word	Noun	Adjective	Verb	Adverb
educationalist	Yes	No	No	No
specialist	Yes	No	No	No

As nouns, specialist is a hypernym of educationalist; that is, specialist is a word with a broader meaning than educationalist:

educationalist: a specialist in the theory of education
specialist: an expert who is devoted to one occupation or branch of learning

Other hypernyms of educationalist include specialiser, specializer.

educationalist (noun)	specialist (noun)
a specialist in the theory of education	an expert who is devoted to one occupation or branch of learning
	practices one branch of medicine