Defn: Having power to retain; as, a retentive memory. Nor airless dungeon, nor strong links of iron, Can be retentive to the strength of spirit. Shak.
RETENTIVE
Re*ten"tive, n.
Defn: That which retains or confines; a restraint. [R.] Bp. Hall.
RETENTIVELY
Re*ten"tive*ly, adv.
Defn: In a retentive manner.
RETENTIVENESS
Re*ten"tive*ness, n.
Defn: The quality of being retentive.
RETENTIVITY
Re`ten*tiv"i*ty, n.
Defn: The power of retaining; retentive force; as, the retentivity of a magnet.
RETENTOR
Re*ten"tor, n. Etym: [L., a retainer.] (Zoöl.)