Phil in SF quoted Riot Baby by Tochi Onyebuchi
Ella and Kev are brother and sister, both gifted with extraordinary power. Their childhoods are …
The flap of the bag opens on its own and out spin clear, lenticular discs containing ball bearings.
— Riot Baby by Tochi Onyebuchi (26%)
new vocabulary: lenticular
shaped like a lentil, especially by being biconvex