triblet
noun
trib·let
ˈtriblə̇t
variants or treblet
ˈtreb-
plural -s
: any of various mandrels used in making rings or nuts or in drawing tubes
Word History
Etymology
French triboulet, probably from Middle French tribouler, triboler to press, oppress, trouble, afflict (from Late Latin tribulare to oppress, afflict) + -et