mnemotechnic (adjective)

1. In Greek mythology, Mnemosyne was the goddess of memory and the mother of the nine muses.

2. The haunting melody played by the music box had a mnemotechnic effect, unlocking repressed memories of the terrifying night.

3. The superhero used a mnemotechnic device to remember important information and battle villains more effectively.

4. The protagonist in the novel utilized various mnemotechnic techniques to recall key details and solve the mysterious crime.