thou
nounUS, UK /θaʊ/
Etymology Clipping of thou(sandth).
A unit of length equal to one thousandth of an inch (25.4 µm).
- We just wanted to take off a few thou, which we easily did with fine sandpaper.
- But to continue, "At Horwich they had gone all scientific, and talked in 'thous.,' though apparently some of their work was to the nearest half-inch. […]."1946 November and December, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 344:
2 more examples
- All these methods remove metal and can, in fact, remove a few thou from the surface. For accurately machined parts, therefore, none of these methods are suitable but wet blasting with a fine alumina which gives a polishing–cleaning action may be operated within the required tolerances.1984, Robert D. Adams, William C. Wake, “Surface Preparation”, in Structural Adhesive Joints in Engineering, Barking, Essex: Elsevier Applied Science Publishers, published 1986, →DOI, →ISBN, pages 220–221:
- Make no mistake, we’re talking about some major repositioning; the rear ends of the cones didn’t move just a few thou’ or even 1/4 or 1/2 inch in one direction. These beauties moved around big time.2000, Mike Bishop, Vern Tardel, “Bells and Whistles”, in How to Build a Traditional Ford Hot Rod, revised edition, Osceola, Wis.: MBI Publishing Company, →ISBN, page 131, column 2: