Stanchion

Webster's Dictionary of the English Language

·noun A vertical bar for confining cattle in a stall.

II. Stanchion ·noun Any upright post or beam used as a support, as for the deck, the quarter rails, awnings, ·etc.

III. Stanchion ·noun A prop or support; a piece of timber in the form of a stake or post, used for a support or stay.