In fall arrest this is a common term, and it's super accurate, regardless whether it's common with rock climbers, these are definitely anchors. So it's not surp

In fall arrest this is a common term, and it's super accurate, regardless whether it's common with rock climbers, these are definitely anchors. So it's not surprising that a MIT paper would use it. A more specific example, Black Diamond's camalot z4 are described in their manual as 'frictional anchors' Edit: of course there is a standard hah - EN 12276:2013 Mountaineering Equipment – Frictional Anchors