a narrow strip of welded metal of approximately triangular cross-section used to join steel members at right angles
fillet weld in American English
(ˈfɪlɪt)
noun
Engineering
a weld with a triangular cross section joining two surfaces that meet in an interior right angle
Word origin
[1925–30]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: Nazi, buildup, decibel, payload, recycle