lag screw(redirected from lag bolt)
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Related to lag bolt: carriage bolt
one of several screws placed through bony fracture fragments to immobilize the fragments, used in repair of mandibular fractures.
lag screwOrthopedics Any screw used to achieve interfragmental compression; LSs do not protect fractures from bending, rotation or axial loading forces, and other devices should be used to provide these functions. See Screw.
1. the time elapsing between application of a stimulus and the resulting reaction.
2. the early period after inoculation of bacteria into a culture medium, in which the growth or cell division is slow.
a screw used in compression plating of bone fractures; it has U-shaped threads.