lentiform

/ˈlɛntəˌfɔrm/
adjective
  1. Shaped like a lentil or a biconvex lens.
    • The lentiform seeds of the plant are small and round with a flat edge.
    • The artist carved a lentiform pendant that resembled a polished lens.
    • Geologists found lentiform deposits of minerals in the rock layers.