1. (

• retention ,
• keeping ,
• holding

) the act of retaining something ;

2. (

• memory ,
• retention ,
• retentiveness ,
• retentivity

) the power of retaining and recalling past experience; "he had a good memory when he was younger" ;

3. (

• retentiveness ,
• retentivity ,
• retention

) the power of retaining liquid; "moisture retentivity of soil" ;