verb (used with object), un·der·ran, un·der·run, un·der·run·ning.
Examples from the Web for underrun
The car had just thundered past another station, and Callahan had underrun one more stop-signal at full speed.The Grafters|Francis Lynde
In precisely similar manner the horn, and in this case the skin of the coronet, is underrun.Diseases of the Horse's Foot|Harry Caulton Reeks
The Niagara put back, and the cable was "underrun" the whole distance.The Story of the Atlantic Telegraph|Henry M. (Henry Martyn) Field
The 'Niagara' put back, and the cable was 'underrun' the whole distance.Great Fortunes, and How They Were Made|James D. McCabe, Jr.
The snow-white spires of the oncoming ship swayed with solemn and stately motions to the underrun of the quartering sea.My Danish Sweetheart., Volume 2 of 3|William Clark Russell