course session vs recitation

course session and recitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
course session	Yes	No	No	No
recitation	Yes	No	No	No

As nouns, course session and recitation are synonyms defined as:

course session and recitation: a regularly scheduled session as part of a course of study

Other synonyms of course session include class period.

course session (noun)	recitation (noun)
a regularly scheduled session as part of a course of study	systematic training by multiple repetitions
	a regularly scheduled session as part of a course of study
	a public instance of reciting or repeating (from memory) something prepared in advance
	written matter that is recited from memory