prolongation vs protraction

prolongation and protraction both are nouns.

Word	Noun	Adjective	Verb	Adverb
prolongation	Yes	No	No	No
protraction	Yes	No	No	No

As nouns, prolongation and protraction are synonyms defined as:

Other synonyms of prolongation include lengthening, perpetuation.

As nouns, prolongation and protraction are synonyms defined as:

prolongation and protraction: the consequence of being lengthened in duration

Other synonyms of prolongation include continuation, lengthiness.

prolongation (noun)	protraction (noun)
the act of prolonging something	the act of prolonging something
amount or degree or range to which something extends	the consequence of being lengthened in duration
the consequence of being lengthened in duration