retentivity

nouns

the power of retaining and recalling past experience
"he had a good memory when he was younger"
memory, retention, retentiveness, retentivity
is derived from
retentive
the property of retaining possessions that have been acquired
retentiveness, retentivity
the power of retaining liquid
"moisture retentivity of soil"
retention, retentiveness, retentivity
is derived from
retentive