stanchion

Short definition from Wiktionary

Noun

1. 1
   A vertical pole, post, or support.
2. 2
   A framework of such posts, used to secure or confine cattle.

Verb

1. 1
   To erect stanchions, or equip something with stanchions.
2. 2
   To confine by means of stanchions, typically used for cattle.