retentivity vs memory

retentivity and memory both are nouns.

Word	Noun	Adjective	Verb	Adverb
retentivity	Yes	No	No	No
memory	Yes	No	No	No

As nouns, retentivity and memory are synonyms defined as:

retentivity and memory: the power of retaining and recalling past experience

Other synonyms of retentivity include retention, retentiveness.

retentivity (noun)	memory (noun)
the power of retaining liquid	an electronic memory device
the property of retaining possessions that have been acquired	the power of retaining and recalling past experience
the power of retaining and recalling past experience	the cognitive processes whereby past experience is remembered
	something that is remembered
	the area of cognitive psychology that studies memory processes