noun
- plural of microinch; units of measurement equal to one millionth of an inch
Usage: technical; engineering
Examples
- The surface roughness was measured in microinches.
- The tolerance specification called for accuracy within 50 microinches.
- Machine parts must be manufactured to within a few microinches of the design specifications.
- The coating thickness varied by only 10 microinches across the entire surface.
- Quality control requires measurements precise to the nearest microinches.
- The engineer specified a finish of 32 microinches for the critical component.