(n.) A notch, channel, or slit made in any material by cutting or sawing.
Example Sentences:
(1) In children older than 1, however, the bone is relatively brittle, yet it, too, may be remodeled by sectioning it first into 1.5 to 2.0 cm wide strips, then placing resistance-weakening kerfs on the bone's endocranial surface.
(2) The kerfs weaken the bone regionally so that controlled bending may occur.