anchor point

Short definition from Wiktionary

Noun

1. 1
   A place to which things are anchored.
2. 2
   Something that provides stability or a connection.
3. 3
   A point on the body, such as the chin or the corner of the mouth, that an archer touches with the string hand when the bow is fully drawn, in order to maintain a consistent draw.

Proper noun

1. 1
   A town in Newfoundland, Newfoundland and Labrador, Canada.