Definitions

1. adjective

Relating to or resembling the shell of a conch, especially in having a smooth, curved, or wavy shape.

“The conchoidal shape of the beach stones was a testament to the power of the ocean.”

2. noun

A fracture or break in a material that exhibits a smooth, curved, or wavy edge, typically resulting from the material’s conchoidal fracture pattern.

“The conchoidal fracture of the glass made it difficult to reassemble.”