saddle joint

noun — 2 senses

saddle joint

noun
1

In sheet-metal roofing, a joint formed by bending up the edge of a sheet and folding it downward over the turned-up edge of the next sheet.

2

Anatomy, Medicine, Sciences A joint allowing movement in every direction except axial rotation.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.