fracture surface; fracture
Technical term in materials science and engineering for the surface where a material has broken. Not used for bone fractures in a medical context.
We observed the fracture surface of the metal under a microscope.
The fracture surface of this material shows characteristics of brittle fracture.
conchoidal fracture
Compound of 断 (cut off, break) and 口 (mouth, opening), referring to the surface exposed by breaking. The exact historical derivation is uncertain, but the term is used in technical fields.